200823746 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種電腦資訊技術，特別是有關於一 種碟片陣列裝置可同步存取式容量擴充處理方法及系 統，其可應用於搭配至一碟片陣列裝置，例如為一 raid (Redundant Array 〇f independent Disks)碟片陣列襞 置，用以對該RAID碟片陣列裝置提供—容量擴充處理功 能’並可於容量擴充處理程序的執行過程中，讓使用者仍 可對該RAID碟片陣列裝置所現存之資料進行同步存取。 【先前技術】 碟片陣列裝置（Redundant Array of Independent = RAID)為-種具備有多個實體硬碟單元的電腦資 通常係應用於搭接至網路伺服器，用以儲 龐大的電腦網路資料。由於raid 置具備有多個硬碟單元，因此可提供多工化之電 二 取功能來提升整體之存取效率， 、’斗存 ^ + 並亦可提供多重備份之鏡 射儲來使得電職料的儲存具有更 1::際應用上’㈣碟片陣繼中的多個V片單 疋通吊會預先規劃成-或多個群組，藉 業片早 群組來提供特定目的之資料 母個碟片 員有需要擴充_碟片_ /1二=H統管理人 :群一:谷量擴充方法為加裝-個包含多個碟片單元二用 然而上述之容量擴充方法於 實際應用上的 一項缺點 19905 5 200823746 mr 一個碟片群組後’其與原始之碟片群組二者 =自八有不同的同位碼(parity)，因此將顯著地 料處理上的複雜度吏杳 、 困難度。 使H鈿較為複雜而具有較高的 •得網目心容量擴充處理料#際進行時，其會使 暫時無法對瞻碟片陣列裝置所‘ 子 亦即無法於該RAID碟片陣歹,j f 勺 寫入資料’因此於進行容量擴充處理程== 服器的資料舰功能暫時停擺。序谓使付網路飼 【發明内容】 鑒於以上所述習知技術之缺點 是在於提供-種碟片陣列裝置 t月之/要目的便 列穿置讓網路系統管理人員對難碟片陣 有之碟片群&，i 早—個碟片單元來加褒至現 、、不必加裝另一個碟片群組。 本發明之另一目的在一 步存取式容量擴充處理方半=種碟片陣列裝置可同 程序的執行過浐中 / μ統，其可於容量擴充處理 列裝置所現二!：舊讓網路伺服器可對驗碟片陣 置所現存之貧料進行存取。 本發明之碟片陣列裝置 方法至少包合以Τ +老 』^存取式谷1擴充處理 長度來讀取及複里逐-以-預定之資料 之資料暫存至一預建二:二7的各筆資料’並將複製 所暫存之資鮮ώ 、，賴存H)將該缓衝儲存區 貝科猎由一預定之碟片陣列儲存模式而重建於 19905 6 200823746 該新增之碟片單元上；（M3)於該容量擴充處理程序的執行 過程中，若該電腦平台對該碟片p車列農置發出一存取要求 訊息，則回應地發出一存取位址檢查致能訊息；（M4)回應 该存取位址檢查致能訊息而檢視該存取要求訊息所要求 的存取位址與該碟片群組上目前正在進行資料複製的擴 ^衝區的相對位置；若位於該擴充緩衝區之前，則發出 第2取處理致能訊息；若位於該擴充緩衝區之後，則 2出-第二存取處理致能訊息；而若位於該擴充緩衝區之 曰順=出—第三存取處理致能訊息；⑽若擴容處理 了、向處理，亦即由較前面的磁執往較後面的磁執進 理’回應該第一存取虚理较处 自 之碟片群組進行資料存取;：岸；平台對新建 台對原始之碟片群組進行資料存取;回應該 致能訊息而首先檢視該存取要求訊息的存 蜀f ，右為一讀取要求訊息，則令該 緩衝儲存區讀取所要求之資料;反：十：直接以 息，則禁制該寫入要求訊息，且回二：=1求訊 雷腦平△ * 寻裝置忙碌訊息給該 新致紐衝11巾的㈣完成重建之後再重 新致^電财台讀續重發之“要求訊息。 於貫體架構上，本發明之碟片陣列裝 容量擴充處理系統至少包含·（ _ σ 乂子取式 括-—一 （）一貢料緩衝模組，其包 中用來_"1區’用以於該容量擴充處理程序的進行過程 筆資料曰(子B碟片群組複製至該新增之碟片單元的各 葦貝化⑻-㈣複製模組，其可逐—以 19905 7 200823746 長度來讀取及複製該磾η敌 •之資料斬現存的各筆資料，並將複製 二爾存至“料緩衝模組中的緩衝儲存區； . 吟輪組中的緩_存區所暫存之 貝科猎由一預疋之碟片陣丨 .碟片單元上；⑼-存取m式而重建於該新增之 ‘充處理程序的進行過r中l其可於該容量擴 .二置所發出之各個存取要求訊息而發出一存車： ^訊息；⑻-存取位址檢查模組，其可回應該存取-要 輯發㈣存取位讀查致能訊“檢視 取要求訊息所要求的存取位址與該碟片群組上目前正在 =貝㈣的擴充緩衝區的相對位置;若位於該擴充緩 =之前’則發出-第—存取處理致能訊息；若位於該擴 緩衝區之後，則發出—第二存取處理致能訊息；而若位 =該擴充緩衝區之中，則發出—第三存取處理致能訊息； (入F卜新建碟片群組存取控制模組，其可回應該存取位址 才欢查核組所發出的第—存取處理致能訊息而令該電腦平 台對新建之碟片群組進行資料存取；⑹一原始碟片群組 存取控制模組，其可回應該存取位址檢查模組所發出的第 二存^處理致能訊息而令該電腦平台對原始之碟片群組 行資料存取’以及⑻—擴充緩衝區存取處理模組，其 可回應，亥存取位址檢查模組所發出的第三存取處理致能 訊息而首先檢視該存取要求訊息的存取屬性；若為一讀取 要求訊息’則令該電腦平台直接從該資料缓衝模組中的缓 衝儲存區讀取所要求之資料；反之，若為一寫入要求訊 19905 8 200823746 息’則則禁制該官Λ * φ .^ ^ . 寫入要求訊息，且回傳一裝置忙碌訊i妗 ::細平口’直至該擴充緩衝區中的資料完成重建之後再 •重新㈣該電腦平台於後續重發之寫人要求訊息。 μ $ m車列裝置可同步存取式容量擴充處理 ::=Γ特點在於可僅新增單-個碟片單元來二 .一容量擴充處理程序，並可於進行此 合里擴充處理程序時，依舊讓網路 片陣列裝置現存之警祖、也，士 J訂dKAID碟 充處理程序以更為動作。此特點可讓容量擴 之網路系統管方式來具體實施，並可增進整體 【實施方式】 壯下P配口所附之圖式，詳細揭露說明本發明之碎片 陣列裝置可同步存取式交旦 系片 例。 弋谷里擴充處理方法及系統之實施 弟1圖即顯示本私日曰 六旦 ^月之碟片陣列裝置可同步存取式 谷里&充處理糸統（如掉辦 、應用方式。如圖所亍所‘之方塊所包含之部分） ’、本叙明之碟片陣列裝置可同步存 」土 予、、4 100於貫際應用上係整合至一碑 片陣列裝置，例如為一 rAid Γρ Η』 1 ID (Redundant Array of 式之碟片陣列裝置2〇，且該ra 片陣列裝置20係搭接至一 …、 包驷十台10，例如為一網路伺 服器’且包括一碟片群組3 ,^ , 00 (於弟1圖所示之實施例中， :匕碟片群組30例如包括3個碟片單元31、32、33;但苴 數目並無限制）。 /、 19905 9 200823746 於實際應用時，假設使用者(即網路 欲新增一碟片單元34 里人貝） 六—曰 至4碟片群組30來增加其整I#之作 存谷1，則網路系統管理人員 、體之储 裝置可P了利用本發明之碟片陣列 衣置ΤΠ步存取式容量擴充處理系 組30進行一交旦被*占w 木对巧碟片群 t仃谷里擴充處理程序，並可於此宏旦批亡老 程序的執行過程中，讓電腦 、 抬充處理 r 千台10仍可對 陣列裝置20的碟片群組3〇上 ”片 取。 I所原先储存之資料進行存 —如第2圖所示，本發明之碟片陣列裝置可 谷1擴充處理系統⑽的模組化的基本架構至少包式 2料緩衝模組HG ’·⑻-資料複製模組⑽ 重 建杈組130 ; (D) —存取要、卡门虛l 重 存取要求回應模組21〇; (£) 一 址檢查模組220 ; (F)—新建磾片群έ ^ 咬未月群組存取控制模組231 · =-擴充緩衝區存取處理模組233;以及（η)一原’ 群組存取控制模組232。以下即首先分別㈣此些構件2 個別屬性及功能。 勺 資料緩衝模組110包括一緩衝儲存區m和-容吾於 充狀態旗標112。於具體實施上，此緩衝儲存區⑴= 量擴充狀態旗標112係例如為電腦平台1〇的系統快取吃 憶體11中所預先規劃出之-儲存區塊，且其容量例如為 刪B或256KB(但此容量並無特別限制）；其中該緩衝儲 m係於容量擴充處理程序的執行過程中，用來暫存 從碟片群組3〇複製至新增之碟片單元34的資料;而該容 量擴充狀態旗標112例如名為[EXPANDING_ STATUS]，用 10 19905 200823746200823746 IX. Description of the Invention: [Technical Field] The present invention relates to a computer information technology, and more particularly to a method and system for synchronous access capacity expansion processing of a disk array device, which can be applied to A disc array device, such as a raid (Redundant Array 〇f independent Disks) disc array device, provides a capacity expansion processing function for the RAID disc array device and can execute the capacity expansion processing program The user can still access the data existing in the RAID disc array device. [Prior Art] A Redundant Array of Independent = RAID is a computer with multiple physical hard disk units. It is usually used to connect to a network server to store a large computer network. data. Since the raid is equipped with multiple hard disk units, it can provide multiplexed power-receiving functions to improve overall access efficiency, and also provide multiple backup mirror storage to make electricity jobs. The material storage has a more 1:: application ('four) disc array, followed by a number of V-single slings will be pre-planned into - or multiple groups, borrowing early groups to provide specific purpose information The mother disc player needs to expand _ disc _ / 1 two = H system administrator: group one: the valley expansion method is to install - one contains multiple disc units two use the above capacity expansion method for practical applications A shortcoming of 19905 5 200823746 mr After a disc group, it has a different parity from the original disc group, so it will significantly handle the complexity. , Difficulty. If the H钿 is more complicated and has a higher value, the network capacity expansion processing material will be temporarily unable to be used for the RAID disc device, that is, the RAID disc can not be used. Write data 'Therefore, the capacity expansion process == The data ship function of the server is temporarily stopped. The preamble is to pay for network feeding. [Inventive content] In view of the above-mentioned prior art, the shortcoming of the prior art is to provide a disc array device for the purpose of the month. There are disc groups &, i early - a disc unit to add to the present, no need to add another disc group. Another object of the present invention is that in the one-step access type capacity expansion processing method, the half-disc array device can be executed in the same manner as the program, which can be used in the capacity expansion processing column device. The server can access the poor materials currently stored in the disc array. The disc array device method of the present invention at least includes the data of the data processing of the Τ+老』^ access type valley 1 expansion processing, and the data of the predetermined data is temporarily stored in a pre-built two: two 7 The various materials 'will be copied and stored in the temporary storage, 赖存H) The buffer storage area Beko Hunt was reconstructed from a predetermined disc array storage mode in 19905 6 200823746 (M3) during the execution of the capacity expansion processing program, if the computer platform sends an access request message to the disc p farm, an access address check is issued in response to the activation The message (M4) should access the address check enable message and view the relative location of the access address required by the access request message and the expansion area of the disc group currently undergoing data copying; If it is located before the expansion buffer, the second processing enable message is sent; if it is located after the expansion buffer, the second output processing message is enabled; and if the buffer is located in the expansion buffer, - the third access processing enable message; (10) if the expansion is processed, Processing, that is, from the front of the magnetic to the later magnetic handles to 'return the first access to the virtual disc from the disc group for data access;: shore; platform to the new station to the original The disc group performs data access; the reply message should be enabled to first view the access f of the access request message, and the right is a read request message, so that the buffer storage area reads the requested data; Ten: Directly in the interest rate, the write request message is banned, and back to two: = 1 to seek the news Lei Lei Ping △ * find the device busy message to the new to the new rush 11 towel (four) after rebuilding and then re-finance The "required message" is continuously read and reissued. In the architecture, the disc array capacity expansion processing system of the present invention at least includes (( _ σ 乂 取 - - - - () - a tributary buffer module, The package used in the package _"1 area' is used to process the data of the capacity expansion processing program (the sub-B disc group is copied to each of the newly added disc units (8)-(4) copy Module, which can read and copy the data of the 敌n enemy from the length of 19905 7 200823746斩 Existing data, and copy the Er Er to the “buffer storage area in the material buffer module; .碟.The disc unit; (9)-access m-type and reconstructed in the newly added 'charge processing program', the r-send l can be issued in the capacity expansion and the second access issued by each access request message Save the car: ^ message; (8) - access address check module, which can be accessed back - to issue (4) access bit read enable message "view the access address required by the request message and the disc The relative position of the expansion buffer of the squad (four) is currently on the slice group; if it is located before the expansion easing = then the -first access processing enable message is sent; if it is located after the expansion buffer, the second is issued - the second Access processing enable message; if bit = in the expansion buffer, then send - third access processing enable message; (into the new disc group access control module, which can be saved back Take the address to check the first access processing enable message sent by the nuclear group and let the computer platform perform the newly created disc group. (6) an original disc group access control module, which can respond to the second memory processing enable message sent by the address checking module to cause the computer platform to target the original disc group Group data access' and (8) - an extended buffer access processing module, which can respond to the third access processing enable message issued by the Hai access address checking module and first view the access request message Accessing the attribute; if it is a read request message, the computer platform reads the requested data directly from the buffer storage area in the data buffer module; otherwise, if it is a write request message 19905 8 200823746 Interest' then ban the official residence * φ .^ ^ . Write the request message, and return a device busy message i:: fine flat mouth ' until the data in the expansion buffer is rebuilt and then re- (four) the computer The platform asks for a message in the subsequent resend. μ $ m train device synchronous access capacity expansion processing: := Γ is characterized by the ability to add only one single disc unit to two. One capacity expansion processing program, and can be used to expand the processing program , still let the network slice array device existing police ancestors, also, the J JDKAD disc charge processing program to be more action. This feature allows the capacity expansion of the network system management method to be implemented, and can improve the overall implementation. [Embodiment] The diagram attached to the P-matching port is extended, and the fragment array device of the present invention can be synchronously accessed. Dan is a film. The implementation of the expansion method and system in Shibuya is shown in Figure 1. This shows that the disc array device of this private day can be synchronized to access the valley & charging system (such as the drop-off, application mode. The part included in the block of the figure is ', the disc array device of the present description can be stored simultaneously." The earth, the 4 100 is integrated into a tablet array device in a continuous application, for example, an rAid Γρ ID 1 ID (Redundant Array of disc array device 2 〇, and the ra array device 20 is lapped to a ..., 10 sets of 10, such as a network server ' and includes a disc Group 3, ^, 00 (In the embodiment shown in Figure 1, the disc group 30 includes, for example, three disc units 31, 32, 33; however, the number of ports is not limited.) /, 19905 9 200823746 In actual application, suppose the user (that is, the network wants to add a disc unit 34 to the person), the six-to-four disc group 30 to increase its whole I# The system administrator and the storage device of the system can use the disc array of the present invention to install the step-by-step access capacity expansion processing system. Group 30 carries out a rendezvous and is occupied by the expansion of the wood-to-small disc group t仃谷, and allows the computer to carry out the processing of the r The disc group 3 of the array device 20 can be "snapshot". The data previously stored by the I is stored. As shown in FIG. 2, the disc array device of the present invention can be expanded by the processing system (10). The basic structure of the package is at least 2 buffer module HG '·(8)-data replication module (10) reconstruction group 130; (D) - access, card door virtual access request module 21〇; (£ An address inspection module 220; (F) - a new group of έ ^ bite month group access control module 231 · = - extended buffer access processing module 233; and (η) a original 'group The group access control module 232. The following is the first (4) individual attributes and functions of the components 2. The spoon data buffer module 110 includes a buffer storage area m and a container state flag 112. In specific implementation, The buffer storage area (1) = the quantity expansion status flag 112 is, for example, pre-planned in the system cache of the computer platform 1 - a storage block, and its capacity is, for example, B or 256 KB (but this capacity is not particularly limited); wherein the buffer m is used during the execution of the capacity expansion handler to temporarily store the slave disc group 3. Copy the data to the newly added disc unit 34; and the capacity expansion status flag 112 is, for example, named [EXPANDING_ STATUS], with 10 19905 200823746
Zirfn!TRUE^ "TRUE- 衝储存區111巾暫存有正料重建於新增之碟片單元 的資料；f之料”FALSE"，則代表該緩衝儲存區U1 所暫存的㈣已重建至新增之碟片單元34，但下次 料尚未複製進來。當[EXPANDING_ STATUS]容量擴充狀1 旗標112被設定為"麵，，時，其將禁制該電腦平台^ 该系統快取記憶體11進行資料刷新動作。 士資料複製模組120可於容量擴充處理程序開始進行 時’百先被啟動來以上述之資料緩衝模組11()巾的緩衝儲 ，區111的容量（即128〇或256Κβ)為單位而逐一讀取及 禝製該碟片群組30現存的資料（以下將此正在進行資料 讀取及複製的區塊稱為"擴充緩衝區"，並以標號4〇來指 不）’亚將複製出之各筆資料暫存至上述之資料緩衝模袓 110中的緩衝儲存區U1。於此過程中’資料複製模組'12〇 會令資料緩衝模組110將其EXPANDING-STATUS容量擴充 狀態旗標112設定為n TRUE，，。 重建模組130可將上述之資料複製模組12〇暫存至資 料緩衝模組110中的緩衝儲存區lu的資料寫入至新增之 碟片單元34,藉此而於該新增之碟片單元34上重建出原 先儲放於碟片群組30上的資料。於具體實施上，此重建 模組130可採用各式不同之RAID資料儲存演算方法來將 資料重建於新增之碟片單元34上。當緩衝儲存區hi中 的資料全部完成重建之後，重建模組13 〇會令資料緩衝模 組110將其EXPANDING_STATUS容量擴充狀態旗標ι12設 19905 11 200823746 定為"FLASE，，。 * 存取要求回應模組210可於該RAID碟片陣列裝置20 執行谷置擴充處理程序的過程當中，回應該電腦平台1 〇 對5亥碟片陣列裝置20所發出之各個存取要求訊息401而 I出存取位址檢查致能訊息至存取位址檢查模組22〇。 朴存取位址檢查模組220可回應上述之存取要求回應 換組210所發出的存取位址檢查致能訊息而檢視該電腦 平台10所發出之存取要求訊息401的資料存取位址與該 碟片群組30上目前正在進行資料讀取的擴充緩衝區 的相對位置，右擴容處理是順向處理，亦即由較前面的磁 軌往較後面的磁執進行處理，該存取要求訊息術的資料 存取位置位於該擴充緩㈣4〇之前（即如第㈣牝圖所 讀地位於碟片群組3〇令的重建完成區塊6〇)，則發出 一弟一—存取處理致能訊息；若位於該擴充緩衝區4〇之後 即如弟4 A和4 B圖所示般地位於碟片群组3 〇中的尚未重 建區塊50)，則發出一第二存 ^ ^ ^ ^ ^ ^ , 處理致旎矾息；而若位於 =充_區40之中’則發出一第三存取處理致能訊 址檢查模組竭發出的，、、;， 電腦平/的弟—存取處理致能訊息而令該 ；：rG透過新建之碟片群組1來進行資料存取動 原始碟片群組存取控制 位址檢查模組220所發出的第: 應上述之存取 該電腦平台10對原始之碑 处王致能訊息而令 茱片鮮組30進行資料存取動作。 19905 12 200823746 擴充緩衝區存取處理模組233可回應上述之存取位 ♦址檢查模組220所發出的第三存取處理致能訊息而首先 -檢視該存取要求訊息401為一讀取要求訊息或一寫入要 求讯息，若為讀取要求訊息，則令該電腦平台1 〇直接從 ，資料緩衝模組110中的緩衝儲存區U1讀取所要求之資 *料；反之，若為寫入要求訊息，則禁制該寫入要求訊自， .且回傳一裝置忙碌訊息(device busy)402給該電腦平： 10，直至該擴充緩衝區4〇中的資料完成重建之後再重新 ί致能該電腦平台10於後續重發之寫入要求訊息。 以下即以利用一應用實例及配合第3圖來^明本發 明=碟片陣列裝置可同步存取式容量擴充處理系統⑽ 於貫際應用時的整體操作方式。於此應用實 :了碟片陣列裝置2〇之現有碟片群組％的容量已;二 飽和’因此網路系統管理人員將一新增之碟片單元 裝至漏碟片陣列裝置2〇，並接著啟動本發明 列裝置可同步存取式容量擴充處理系統_新 之碟片單元34來執行一宠旦樜亡♦讲 了遺新i曰 之處理動作⑽ 里擴充處理程序（如第3圖所示 於容量擴充處理程序被啟動後（即電腦平台 =量擴充啟動事件301後），首先由資料_ 負責以貧料緩衝模組m中的緩衝儲存區lu的::且曰120 (麵或細)為單位而逐一讀取及複製該磾片： :存的資料，並將複製出之各筆資料暫存 料 衝模組㈣的緩衝儲存請(如第3圖所示 19905 13 200823746 作P11)。於此過程中，資料複製模組120會令資料緩衝 模組110將其EXPAND丨NG-STATUS容量擴充狀態旗標i i 2 設定為"TRUE"。 τ 於上述之資料複製及緩衝過程中，若電腦平台1〇未 對RAID碟片陣列裝置20發出任何存取要求訊息°，則重 建模組130即接著被啟動來執行第3圖所示之 P12，藉以將目前暫存於該資料緩衝模組11〇中的資料寫 入至新增之碟片單元34，藉此而於該新增之碟片單元34 上重建出原先儲放於碟片群組3〇上的資料。接著執行第 3圖所示之處理動作P13來檢視碟片群組3〇中的資料是 否已全部完成重建工作；若是，則結束容量擴充處理程 序；反之若否，則再重複執行處理動作pil_pi2，直至原 始之碟片群組3 0中的資料如第4 D圖所示般地全部完成重 建工作為止。當緩衝儲存區丨丨丨中的資料全部完成重建之 後，重建模組130會令資料緩衝模組丨丨〇將其 EXPANDING—STATUS容量擴充狀態旗標112設定為 nFLASEn 。 但若於資料複製及緩衝過程中，電腦平台1〇對 碟片陣列裝置20發出一存取要求訊息4〇1，例如為一讀 取要求訊息或一寫入要求訊息(如苐3圖所示之處理動： P20)’則其即會啟動存取要求回應模組21〇回應地發出一 存取位址檢查致能訊息至存取位址檢查模組22q，令存取 位址檢查模組220回應地執行第3圖所示之處理動作P21 來檢視該存取要求訊息4〇1所要求的存取位址與該碟片 14 19905 200823746 群組30上目前正在進行資^ ^ ^ ^ ^ ^ '位置；綠於該擴充緩衝區4G之1擴”4G的相對 ，處理致能訊息至新建碟片群、ΙΗδ出一弟—存取 灯如弟3圖所示之處理動作p22; 執 .之後’則發出-第二存取處理致能訊息至=::° ，取控制模組232，令其執 原始業片群组存 =息，緩衝區存取處―，== 3圖所不之處理動作P24。 弟 :處理動作P22中’新建碟片 被啟，騎資㈣取=亦 即讓電腦平台10對新建竿 亦 於處理動侧中，二二^ 原始之碟片群組3。進行資料存取動作，亦即 ° +σ 1〇對原始之碟片群組30進行資料存取。 ‘被啟_ ^理2作m中’擴充緩衝區存取處理模組233 被啟動來百先檢視電腦平台1〇 如為-讀取要求訊息或一寫入要求訊息:若=二 息直接則執行第3圖所示之處理動作P25，令該電腦平台 料緩衝模組11〇中的緩衝儲存區⑴讀取所 S t: 之若為寫入要求訊息，則執行第3圖所示 =動作—裝置忙碌訊息4〇2給電腦平台 致二ΪΓ亥擴充緩衝區40中的資料完成重建之後再重新 致…亥電腦平台10於後續重發之寫入要求訊息。於此之 19905 15 200823746 平台10再次發出同一寫入要求訊息時，則令 其對新建之碟片群組3〇,進行寫入動作。 :::之’本發明提供了 一種碟片陣列裴置可 =谷！擴充處理方法及系統，其可應用於一 == 車列裝置，用以對該咖碟片陣列裝置提供一 ^充處理功能；且其特點在於可僅新增單-個碑片、單 =對：原始之碟片群組進行-容量擴充處理程序，、並可 量擴充處理料時，依舊讓網路健器可對該 讓容量!^卢列裝置現存之資料進行存取動作。此特點可 辦進=㈣处理私序以更為簡易的方式來具體實施，並可 網路线㈣效能。本 Ζ 有更佳之進步性及實用性。 孕乂无剛技術具 〜^戶斤述僅為本發明之較佳實施例而已，並非用以jip 疋本發明之實質技術内容 用乂限 :廣義地定義於下述之申請專利範圍中=;:二容 完全相同、或是為—種：：專利-圍所定義者為 發明之申請專利範圍Γ中更，均將被視為涵蓋於本 【圖式簡單說明】 第1圖為一應用示意圖，用以顯示 衣置^步存取式容量擴充處理系統的應时式片陣列 褒置可同步存取式容顯示本發明之碟片陣列 第統賴域基本架構； Μ /舌動不意圖（actlvitydlagrain)，用以 19905 16 200823746 顯示本發明之碟片陣列裝置可同步存取式容量擴充處理 系統所執行之各個處理動作； 、 第Μ至4D圖為一組應用示意圖，用以圖解一 組的容量擴充過程。 、 ，【主要元件符號說明】 10 電腦平台 11 20 30 30, 31 32 33 34 40 50 60 100 110 系統快取記憶體 碟片陣列裝置（RAID) 原始之碟片群組 新建之碟片群組 碟片單元 碟片單元 碟片單元 新增之碟片單元 擴充緩衝區 尚未重建區塊 重建完成區塊 ，明之碟>；陣列裝置可同步存取式容量擴充處理系統 資料緩衝模纟且 111 112 120 130 210 系統快取緩衝區 容量擴充狀態旗標 資料複製模組 重建模組 存取要求回應模組 19905 17 200823746 220 存取位址檢查模組 231 新建碟片群組存取控制模組 232 原始碟片群組存取控制模組 233 擴充缓衝區存取處理模組 301 容量擴充啟動事件 401 存取要求訊息 裝置忙碌訊息 402Zirfn!TRUE^ "TRUE- rushing storage area 111 temporary storage of data that is expected to be reconstructed in the newly added disc unit; f material "FALSE", which means that the buffer storage area U1 is temporarily rebuilt (4) has been rebuilt Up to the new disc unit 34, but the next time it has not been copied in. When the [EXPANDING_ STATUS] capacity expansion 1 flag 112 is set to "face, it will ban the computer platform ^ The system cache The memory 11 performs a data refreshing operation. When the capacity expansion processing program starts, the data storage module 120 can be activated to buffer the storage area of the data buffer module 11 (), and the capacity of the area 111 (ie, The existing data of the disc group 30 is read and clamped one by one in units of 128 〇 or 256 Κ β) (hereinafter, the block in which the data is being read and copied is referred to as "extension buffer" 4〇指指不”' The data copied by Ya will be temporarily stored in the buffer storage area U1 in the above data buffer module 110. In this process, the 'data replication module' will cause the data buffer module 110 sets its EXPANDING-STATUS capacity expansion status flag 112 The data of the data storage module 12 temporarily stored in the buffer storage area of the data buffer module 110 is written to the newly added disc unit 34, thereby The data stored in the disc group 30 is reconstructed on the newly added disc unit 34. In a specific implementation, the reconstruction module 130 can use various RAID data storage calculation methods to reconstruct the data. After the data in the buffer storage area hi is completely reconstructed, the reconstruction module 13 will cause the data buffer module 110 to set its EXPANDING_STATUS capacity expansion status flag ι12 to 19905 11 200823746 as "FLASE,,. * The access request response module 210 can respond to the computer platform 1 〇 5 5 碟 片 Array array device 20 during the execution of the valley expansion processing program by the RAID disc array device 20 Each of the access request messages 401 and the I access address check enable message to the access address check module 22. The Park access address check module 220 can respond to the access request response to the swap 210 Access address check The information can be viewed and the relative position of the data access address of the access request message 401 issued by the computer platform 10 and the extended buffer currently being read by the data on the disc group 30, and the right expansion processing is forward. Processing, that is, processing from the upper magnetic track to the later magnetic device, the data access position of the access request information is located before the expansion (4) 4 (ie, as shown in the fourth picture) If the group 3 command rebuilds the block 6〇), a brother-one access processing enable message is sent; if it is located after the expansion buffer 4〇, it is located as shown in the brothers 4A and 4B. In the disc group 3, the unreconstructed block 50), a second storage ^ ^ ^ ^ ^ ^ is sent to process the message; and if it is located in the = charging area 40, a third is issued. The access processing enables the address inspection module to issue the message, and the computer/peer-access control message enables the data to be accessed by the newly created disc group 1. The first disc issued by the original disc group access control address check module 220: the above-mentioned access to the computer flat 10 pairs of the original message and monument can make the Wang dogwood fresh sheet group 30 data access operation. 19905 12 200823746 The extended buffer access processing module 233 can firstly view the access request message 401 as a read in response to the third access processing enable message sent by the access bit address checking module 220. The request message or a write request message, if the request message is read, causes the computer platform 1 to read the required materials directly from the buffer storage area U1 in the data buffer module 110; When the request message is written, the write request message is disabled, and a device busy 402 is returned to the computer: 10, until the data in the expansion buffer 4〇 is re-established and then re-u The computer platform 10 is enabled to write a request message for subsequent retransmissions. The following is an overall operation mode in which the present invention can be used in a continuous application by using an application example and in conjunction with FIG. 3 to illustrate the present invention. In this application, the capacity of the existing disc group of the disc array device 2 has been doubled; therefore, the network system administrator installs a new disc unit to the leak disc array device 2, And then start the device of the present invention, the synchronous access type capacity expansion processing system _ the new disc unit 34 to perform a petal dying ♦ the new processing procedure (10) in the expansion process (such as the third figure After the capacity expansion handler is started (ie, after the computer platform = volume expansion start event 301), the data_ is first responsible for the buffer storage area lu in the poor buffer module m:: and 曰120 (face or Fine) Read and copy the shards one by one for each unit: : The stored data, and the buffered storage of each data temporarily stored in the material buffer module (4) (as shown in Figure 3, 19905 13 200823746 for P11 In the process, the data replication module 120 causes the data buffer module 110 to set its EXPAND NG-STATUS capacity expansion status flag ii 2 to "TRUE". τ in the above data copying and buffering process) If the computer platform 1 is not facing the RAID disc array device 2 If any access request message is issued, the reconstruction module 130 is then activated to execute the P12 shown in FIG. 3, thereby writing the data temporarily stored in the data buffer module 11A to the newly added data. The disc unit 34 is configured to reconstruct the data previously stored on the disc group 3 on the newly added disc unit 34. Then, the processing operation P13 shown in FIG. 3 is executed to view the disc group. Whether the data in the group 3〇 has completely completed the reconstruction work; if yes, the capacity expansion processing program is ended; otherwise, if not, the processing action pil_pi2 is repeated until the original disc group 3 0 has the data as the 4th D The reconstruction process is completed as shown in the figure. After the data in the buffer storage area is completely reconstructed, the reconstruction module 130 causes the data buffer module to expand its EXPANDING_STATUS capacity status flag 112. The setting is nFLASEn. However, during the data copying and buffering process, the computer platform 1 sends an access request message 4〇1 to the disc array device 20, for example, a read request message or a write request message (eg, 3 shows Processing: P20)', then the access request response module 21 is activated to send an access address check enable message to the access address check module 22q in response to the access address check module 220. Responsively executing the processing action P21 shown in FIG. 3 to view the access address required by the access request message 4〇1 and the disk 14 19905 200823746 group 30 is currently in the process ^ ^ ^ ^ ^ ^ 'Position; green in the expansion buffer 4G 1 expansion" 4G relative, processing the enable message to the new disc group, ΙΗ δ out a brother - access light as shown in the figure 3 of the processing action p22; 'Send-the second access processing enable message to =:: °, take the control module 232, let it hold the original business group group = interest, buffer access -, == 3 map Process action P24. Brother: In the action P22, the new disc is activated, and the riding (four) is taken = that is, the computer platform 10 is newly created, and the original disc group 3 is also used. The data access operation is performed, that is, the + + 1 〇 1 进行 data access to the original disc group 30. 'Enable _ _ 2 m m ' expansion buffer access processing module 233 is activated to first check the computer platform 1 - such as - read request message or a write request message: if = 2 interest rate directly Performing the processing operation P25 shown in FIG. 3, so that the buffer storage area (1) in the computer platform buffer module 11 is reading the S t: if it is a write request message, executing the action shown in FIG. - The device is busy message 4〇2 to the computer platform to the second floor of the expansion buffer 40 to complete the reconstruction and then re-send... The computer platform 10 writes the request message for subsequent retransmissions. On the 19905 15 200823746 platform 10, when the same write request message is issued again, it is caused to write to the newly created disc group 3〇. :::' The present invention provides a disc array device that can be = valley! The expansion processing method and system can be applied to a == train device for providing a charging processing function for the coffee dish array device; and the feature is that only a single-word tablet, single=pair can be added : The original disc group performs the capacity expansion processing program, and when the processing material can be expanded, the network health device can still perform the access operation on the data of the capacity of the device. This feature can be implemented = (4) to handle the private order in a more simple way to implement, and network routes (4) performance. This book has better progress and practicality. The invention is not limited to the preferred embodiment of the present invention, and is not intended to be used in the technical scope of the present invention: broadly defined in the following claims; : The two capacitors are identical or the same:: The patent--the definition of the enclosure is the scope of the patent application of the invention. It will be considered as covering the simple description of the diagram. Figure 1 is an application diagram. The time-sharing array array device for displaying the garment-accessible capacity expansion processing system can display the basic structure of the disc array of the present invention in a synchronous access type; Μ / tongue movement is not intended ( Actlvitydlagrain), used in 19905 16 200823746 to display the various processing actions performed by the synchronous access type capacity expansion processing system of the disc array device of the present invention; the second to fourth 4D diagram is a set of application diagrams for illustrating a group of Capacity expansion process. , , [Main component symbol description] 10 Computer platform 11 20 30 30, 31 32 33 34 40 50 60 100 110 System cache memory disc array device (RAID) Original disc group new disc group disc The chip unit of the slice unit disc unit is newly added to the disc unit expansion buffer, and the block reconstruction completion block has not been reconstructed, and the array device can synchronously access the capacity expansion processing system data buffer module and 111 112 120 130 210 System cache buffer capacity expansion status flag data copy module reconstruction module access request response module 19905 17 200823746 220 access address check module 231 new disc group access control module 232 original disc Chip group access control module 233 extended buffer access processing module 301 capacity expansion startup event 401 access request message device busy message 402