(Enhance) Concurrent Capable and Big vg Format Volume Group in AIX Unix （加強）並行能力和大蛋白格式卷組中的AIX Unix系統

In AIX Unix operating system, when you try to create a volume group (vg) or alter and change a vg, there are options or flags of Concurrent Capable (or Enhance Concurrent Capable) and Big vg Format available.在AIX操作系統Unix操作系統，當您嘗試創建一個卷組（蛋白） ，或者改變和變更蛋白，有選擇或國旗的並行接口（或提高並行接口）和大蛋白格式提供。 The parameters are available in mkvg (create new volume group) or chvg (change the characteristics of a volume group) commands in AIX with -c (Concurrrent Capable), -C Enhance Concurrent Capable) and -B (Big vg Format) flags, or accessible via smit or smitty system management console.這些參數可在mkvg （創建新的卷組）或chvg （變化的特點，卷組）中的AIX命令與醇（ Concurrrent能力） ，碳增強並行接口）和乙（大蛋白格式）的旗幟，或可通過斯密特或斯密蒂系統管理控制台。

Concurrent Capable or Enhanced Concurrent Capable volume group is a volume group that you can vary online on more than one AIX instance at a time.並行Capable或增強的並行能力卷組是一個卷組，您可以在網上更改一個以上的AIX實例的時間。 Concurrent Capable option can only be used in configurations with HACMP (not for enhanced version), HACMP ES (Group Services needed to be configured prior to using enhanced version) or Oracle RAC (aka OPS).並行接口的選擇只能用於配置HACMP （而不是增強版） ， HACMP胚胎幹（集團服務需要事先設定的使用增強版）或Oracle真正應用集群（又名處） 。 It has no effect on volume groups and systems not using these HACMP products.它沒有影響的群體數量和系統不使用這些HACMP的產品。 A Concurrent Capable volume group is only supported on Serial DASD and SSA disks, while Enhanced Concurrent Capable volume group is supported on all other disk types.兼能卷組只支持串行直接訪問存儲設備和SSA磁盤，同時能增強並發卷組支持所有其他的磁盤類型。 Only Enhanced Concurrent Capable supports volume group running with a 64 bit kernel.只有並發Capable的增強支持卷組運行64位內核。

Big vg Format meanwhile supports volume group with up to 128 physical volumes and 512 logical volumes.大蛋白格式同時支持卷組與多達128個物理卷和512邏輯卷。 If you want to create a Big vg Format volume group, it’s best that you create the volume group with the setting selected, instead of trying to edit and change to volume group to support Big Format later on, as there are a lot of conditions to take care of and fulfill:如果你想創造一個大蛋白格式卷組，最好是您創建卷組的設置選擇，而不是試圖編輯和更改卷組，以支持大格式後，因為有很多條件，照顧和滿足：

1. The -B flag cannot be used if there are any stale physical partitions or there are any open logical volumes in the volume group.在一B國旗不能使用是否有任何陳舊的物理分區或有任何公開邏輯卷的卷組。
2. Once the volume group is converted, it cannot be imported into AIX 4.3.1 or lower versions.一旦卷組轉換，它不能被導入的AIX 4.3.1或更低的版本。
3. The -B flag cannot be used if the volume group is varied on in concurrent mode.在一B國旗不能使用，如果卷組不同的是並行模式。
4. There must be enough free partitions available on each physical volume for the VGDA expansion for this operation to be successful.必須有足夠的可用分區可以在每個物理卷的VGDA擴大這一行動是成功的。
5. Since the VGDA resides on the edge of the disk and it requires contiguous space for expansion, the free partitions are required on the edge of the disk.由於VGDA位於邊緣的磁盤和它需要連續擴展空間，自由分割需要在邊緣的磁盤。 If those partitions are allocated for user usage, they will be migrated to other free partitions on the same disk.如果這些分區分配給用戶使用，他們將被遷移到其他免費的分區在同一硬盤。 The rest of the physical partitions will be renumbered to reflect the loss of the partitions for VGDA usage.其餘的物理分區將重新編號，以反映損失的分區VGDA使用。 This will change the mappings of the logical to physical partitions in all the PVs of this VG.這將改變映射的合乎邏輯的物理分區的所有逐字記錄本卷組。 If you have saved the mappings of the LVs for a potential recovery operation, you should generate the maps again after the completion of the conversion operation.如果你有救了對應的內徑為潛在的回收作業，您應該生成的地圖後再次完成轉換操作。 Also, if the backup of the VG is taken with the map option and you plan to restore using those maps, the restore operation may fail since the partition number may no longer exist (due to reduction).此外，如果備份卷組採取的地圖選擇，你打算恢復使用這些地圖，還原操作可能會失敗，因為該分區數目可能不再存在（由於減少） 。 It is recommended that backup is taken before the conversion, and right after the conversion if the map option is utilized.建議採取備份之前轉換，並有權轉換後，如果地圖上選擇是利用。 Since the VGDA space has been increased substantially, every VGDA update operation (creating an LV, changing an LV, adding a PV, and so forth) may have a considerably longer duration.由於VGDA空間已大大增加，每一個VGDA更新操作（創建一個低壓，改變了呂，增加了光電，等等）可能有很大的時間更長。
6. A big VG only supports Enhanced Concurrent Capable.大卷組只支持增強的並行能力。

IMPORTANT : This is a machine translated page which is provided "as is" without warranty. 重要說明：這是一台機器翻譯網頁這是“原樣”提供，無保修。 Machine translation may be difficult to understand.機器翻譯可能很難理解。 Please refer to請參閱 original English article英文原文的文章 whenever possible.只要有可能。

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This entry was posted on Wednesday, February 7th, 2007 at 6:27 pm and is filed under 本條目被張貼在週三， 2007年2月7號在下午6時27分，並提交下 Operating Systems 作業系統 . 。 You can follow any responses to this entry through the 您可以按照任何反應，這個項目通過 RSS 2.0 2.0 feed. You can 飼料。您可以 leave a response 留下一個反應 , or 或 trackback 引用 from your own site. 從您自己的網站。