紧急求助

nausicaa

有一个十分紧急问题可能需要有经验的人的帮助\r\n \r\n要对卷组vgjf0进行移除2个PV的操作\r\n\r\n #lsvg -l vgjf0\r\n vgjf0:\r\n LV NAME       TYPE       LPs   PPs   PVs  LV STATE      MOUNT POINT\r\n flcdr1_lv           jfs        660   660   2    open/syncd    /flcdr1_old\r\n loglv00            jfslog      1     1     1    open/syncd    N/A\r\n flcdr1_lv_arsdb     jfs        280   280   5    open/syncd    /flcdr1\r\n flcdr1_lv_arsca     jfs        840   840   13   open/syncd       /flcdr1/ars/arscache\r\n flcdr5_lv_arsca     jfs        830   830   13   open/syncd    /flcdr5\r\n\r\n \r\n #lslv -l flcdr1_lv\r\n flcdr1_lv:/flcdr1_old\r\n PV                COPIES        IN BAND       DISTRIBUTION\r\n hdisk2            270:000:000   20%           055:054:054:054:053\r\n hdisk4            390:000:000   20%           082:081:081:081:065\r\n 上面这两个PV是要删除的，上面的数据没用。可以不考虑，2个PV所在的LV也可以删除\r\n\r\n #lspv –l hdisk2\r\n hdisk2:\r\n LV NAME               LPs   PPs   DISTRIBUTION          MOUNT POINT\r\n flcdr1_lv             270   270   55..54..54..54..53    /flcdr1_old\r\n loglv00               1     1     00..00..00..00..01    N/A\r\n \r\n问题是卷组中的其他3个文件系统共用loglv00为jfslog，有什么方法可以将loglv00移到其他PV上面（卷组内其他磁盘还有Free PP）。\r\n\r\n这种情况下是否可以直接用reducevg命令删除hdisk2和hdisk4，对loglv00有没影响，或者在保证卷组内其他文件系统数据不丢失前提下，正确的步骤是什么？这部分以前没有实践过。请各位大侠出手相助

yanbing

移走或者删除lv。\r\n当然如果数据不需要保留的话，可以直接删除

nausicaa

生产系统，要尽可能确保文件不丢失。可以备份\r\n\r\n- \r\n\r\n各位大侠救命啊。。。。

aaaix

as long as the pv that you want to remove doesn\'t have any lv referencing to it, you can remove the pv from the vg. in another word, before you reducevg, you need to make sure the pv doesn\'t belong to any lv. then you can do reducevg. \r\n\r\n>;问题是卷组中的其他3个文件系统共用loglv00为jfslog，有什么方法可以>;将loglv00移到其他PV上面...\r\ndon\'t need to. don\'t need to worry about the log.

nausicaa

[quote=\"aaaix\"]as long as the pv that you want to remove doesn\'t have any lv referencing to it, you can remove the pv from the vg. in another word, before you reducevg, you need to make sure the pv doesn\'t belong to..........[/quote]\r\n\r\n\"before you reducevg, you need to make sure the pv doesn\'t belong to any lv. then you can do reducevg. \r\n\r\n>;问题是卷组中的其他3个文件系统共用loglv00为jfslog，有什么方法可以>;将loglv00移到其他PV上面... \r\ndon\'t need to. don\'t need to worry about the log.\"\r\n\r\ncan I consider that with whats your replied here . \r\na part of hisk2 is belong to loglv00, if even I remove this log lv it wouldn\'t cause any problem to other three filesystems in the same VG ? are you sure that I don\'t need to care about log ?

jackpenggg

migratepv -l loglv00 hdisik2 hdisk3

aaaix

Ops, so sorry. i didn\'t read the hdisk2 carefully. my bad. \r\nyou DO need to care about the loglv00 since it is using part of the hdisk2.  you are right.\r\n\r\nas long as the pv is not belongs to ANY lv, you can remove it from the vg. if the pv is belongs to some lv, you need to remove all the lv that the pv is belonging to before you remove the pv from the vg.\r\n\r\nyou\'d better do a back up of everything before you remove the pv. just to play safe. but i think you have the back up for production anyway. \r\n\r\nps: you can write chinese if you like.

fl_5208

可以用migratepv\r\n将loglv00移动到free的pv上,我以前用过,没有问题

nausicaa

谢谢各位的大力帮助。\r\n还有一些疑问就是如果我将loglv00从hdisk2用migratepv移走后，确定此pv无任何lv占用后执行reducevg命令，这种操作对VG内的其他文件系统有无影响？\r\n\r\n有人实践过吗？

fl_5208

没有问题，不会影响vg中其他的文件系统和lv，以前用过