2. Volumes

2. Volumes
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卷管理 [Volumes]

我這裡是使用VMware做的試驗,在VMware中增加一些硬碟即可.

Volumes -> Physical Storage Mgmt.

Edit Disk Type Description Size Label type Partitions
/dev/sda SCSI VMware, VMware Virtual S 8.00 GB msdos 3 (view)
/dev/sdb SCSI VMware, VMware Virtual S 8.00 GB gpt 0 (view)
/dev/sdc SCSI VMware, VMware Virtual S 8.00 GB gpt 0 (view)
/dev/sdd SCSI VMware, VMware Virtual S 8.00 GB gpt 0 (view)
...

openfiler安裝在/dev/sda,/dev/sda硬碟空間不用太大,單獨給openfiler使用.建議做RAID 1(硬件RAID卡或伺服器主版提供的RAID)

其它硬碟是用於存儲的硬碟,如果有條件這些硬碟組也最好做成硬RAID,沒有條件我們可以在openfiler中做軟件RAID.

點擊"Edit Disk"列表內硬碟標籤,之後可以看到"Create a partition in /dev/sdb"

Mode: Primary
Partition Type: [Physical volume] / [RAID array member]
Starting cylinder: 1
Ending cylinder Size: 1044
Size: 自動產生

單擊"Create"創建分區

Back to the list of physical storage devices

如果沒有特別需求,不需要創建多個分區.

Edit partitions in /dev/sdb (1044 cylinders with "gpt" label)

Device Type Number Start cyl End cyl Blocks Size Type Delete
/dev/sdb1 Linux Physical Volume (0x8e) 1 1 10 78831 76.98 MB Primary Delete
/dev/sdb2 Linux Physical Volume (0x8e) 2 10 100 721920 705.00 MB Primary Delete
/dev/sdb3 Linux Physical Volume (0x8e) 3 100 200 801792 783.00 MB Primary Delete
/dev/sdb4 Linux Physical Volume (0x8e) 4 200 300 802816 784.00 MB Primary Delete
/dev/sdb5 Linux Physical Volume (0x8e) 5 300 400 801792 783.00 MB Primary Delete

Volumes->Volume Group Mgmt.
Volume Group 可以實現動態擴展空間,注意如果在使用中有一個成員盤損壞,你將無法恢復數據.
應急使用可以,不建議長期使用.
```
Volume group name: vg0
Select physical volumes to add: 在列表前面打勾
/dev/sdb1 8.00 GB
/dev/sdc1 8.00 GB
					
```
單擊"Add volume group"創建vg0
表 77.1. Volume Group Management
Volume Group Name Size Allocated Free Members Add physical storage Delete VG
vg0
15.94 GB
0 bytes 15.94 GB View member PVs Add PVs Delete

擴展Volume Group單擊[PVs Add]按鈕
分區列表前面打勾
[Submit]提交

Volume Group Name	Size	Allocated	Free	Members	Add physical storage	Delete VG
vg0	15.94 GB	0 bytes	15.94 GB	View member	PVs Add	PVs Delete

Volumes -> Create New Volume

選擇VG

創建卷

Volume Name: 卷名
Volume Description: 描述
Required Space (MB): 配額
Filesystem type: 檔案系統

單擊[Create]按鈕

2.1. RAID

Openfiler提供軟RAID.

Volumes -> Physical Storage Mgmt.
點擊"Edit Disk"列表內硬碟標籤,之後可以看到"Create a partition in /dev/sdb"
單擊[Create]按鈕創建RAID組成員
單擊[Back to the list of physical storage devices]返回到 "Physical Storage Management"
Volumes -> Software RAID Mgmt.
```
Select RAID array type: RAID(0,1,5,6,10)
Select chunk size: 這可以針對你的需求做優化
Select RAID devices to add: 打勾選擇
					
```
單擊[Add array]創建RAID
RAID創建完成後,就可以卷組和卷
Volumes -> Volume Group Mgmt. -> Create New Volume
RAID 6 採用雙校驗盤最少4塊硬碟