Success to add Volume service and attach volume into instance

April 14, 2011

Attach device must be after /dev/vda

for example
#euca-attach-volume -i <instance> -d /dev/vd[b,c,d,e] <volume_ID>

#euca-describe-volume

VOLUME  vol-00000003     5              nova    in-use (hugopro, ubuntu2, i-00000017[ubuntu3], \/dev\/vdb)      2011-04-14T09:07:02Z

instance#fdisk-l

Disk /dev/vda: 1476 MB, 1476395008 bytes
16 heads, 63 sectors/track, 2860 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/vda doesn't contain a valid partition table

Disk /dev/vdb: 5368 MB, 5368709120 bytes
16 heads, 63 sectors/track, 10402 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Comments

beginnerJuly 25, 2011 at 5:01 PM
dear Hugo k.
請問用euca-run-instance建立的instance自帶的storage，跟用euca-create-volume建立掛於instance上的storage，有什麼不一樣？thanks.
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Hugo KuoJuly 25, 2011 at 10:39 PM
Volume = EBS
可以永久保存的blockdevice

自帶的就像img 本身的暫時性device
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beginnerJuly 27, 2011 at 5:11 PM
dear Hugo k.

我操作volume狀態如下:
$ euca-describe-volumes
VOLUME vol-00000001 40 nova error_deleting (yljh, server1, None, None) 2011-07-18T13:35:36Z

$ euca-detach-volume vol-00000001
ApiError: ApiError: Volume isn't attached to anything!

刪除volume結果如下:
$ euca-delete-volume vol-00000001
ApiError: ApiError: 卷组状态必须可获取

要怎麼才可以把這沒用的volume刪掉?thanks.
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Hugo KuoJuly 28, 2011 at 12:26 AM
Hello , beginner ...
我記得之前我是從VG下手後再把DB那筆資料k掉的
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beginnerAugust 2, 2011 at 4:25 PM
sorry，看不太懂，可以詳細告知嗎？thanks.
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beginnerAugust 2, 2011 at 5:00 PM
hi,我找到解決方法:
用lvremove指令刪除/dev/nova-volumes/下不要的volume
進入mysql，刪除volumes資料表內不要的volume記錄即可。
感謝提醒。
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beginnerAugust 23, 2011 at 5:46 PM
dear Hugo k.
instance附掛一volume，修改/etc/fstab，以便vm重開時掛載。發現vm重開時，volume的硬碟都會掛上，但是node server重開後，再reboot此instance，卻發現掛不上volume...請問這問題要如何處理較好？
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