I've added a new set of flexible tools to produce column-based output as an alternative to the current 'field: value' xxdisplay format. ftp://ftp.sistina.com/pub/LVM2/tools/LVM2.0-latest.tgz (currently aka beta5 or LVM2.1.95.12; some minor bug fixes also rolled in) Access them either standalone as lvs, pvs or vgs, or by use the new --columns (-C) switch on pvdisplay, vgdisplay or lvdisplay. Some tiny examples: lvm> pvs PV VG Fmt Attr PSize PFree /dev/sdb1 vg1 lvm2 a- 13.97G 13.87G /dev/sdb2 vg3 lvm1 a- 16.00M 0 /dev/sdb3 lvm1 a- 21.00M 21.00M /dev/sdb5 vg2 lvm2 a- 64.00M 40.00M /dev/sdb6 vg2 lvm2 a- 64.00M 60.00M /dev/sdb7 lvm2 -- 40.92M 40.92M lvm> vgs VG #PV #LV #SN Attr VSize VFree vg1 1 1 0 wz-- 13.97G 13.87G vg2 2 3 0 wz-- 128.00M 100.00M vg3 1 2 1 wz-- 16.00M 0 Add a column: lvm> vgs -o +extent_size VG #PV #LV #SN Attr VSize VFree Ext vg1 1 1 0 wz-- 13.97G 13.87G 4.00M vg2 2 3 0 wz-- 128.00M 100.00M 4.00M vg3 1 2 1 wz-- 16.00M 0 4.00M Sort on number of PV's descending then free space descending: lvm> vgs -O -pv_count,-free VG #PV #LV #SN Attr VSize VFree vg2 2 3 0 wz-- 128.00M 100.00M vg1 1 1 0 wz-- 13.97G 13.87G vg3 1 2 1 wz-- 16.00M 0 (It's also OK to sort on fields that aren't output.) lvm> lvs vg2/lvol1 vg3 LV VG Attr LSize Origin lvol1 vg2 -wn--- 12.00M lvol1 vg3 own--- 8.00M lvol2 vg3 swn--- 8.00M lvol1 lvm> lvs --segments -v Finding all logical volumes LV VG Attr Start SSize #Str Type Stripe Chunk lvol0 vg1 -wnm-- 0 100.00M 1 linear 0 0 lvol0 vg2 -wn--- 0 4.00M 1 linear 0 0 lvol1 vg2 -wn--- 0 4.00M 1 linear 0 0 lvol1 vg2 -wn--- 4.00M 8.00M 2 striped 16.00K 0 lvol2 vg2 -wn--- 0 12.00M 1 linear 0 0 lvol1 vg3 own--- 0 8.00M 1 linear 0 0 lvol2 vg3 swn--- 0 8.00M 1 linear 0 0 Colon-separated LV sizes in sectors, suitable for piping to other tools: lvm> lvs -o vg_name,name,size --units s --nosuffix --noheadings --separator : vg1:lvol0:204800.00 vg2:lvol0:8192.00 vg2:lvol1:24576.00 vg2:lvol2:24576.00 vg3:lvol1:16384.00 vg3:lvol2:16384.00 -v for more columns. --units to change the output units (h)uman-readable, (s)ectors, (b)ytes, k, m, g, t or HKMGT to use 1000's instead of 1024's Wierd custom units also possible e.g. --units 374k --separator to set the string separating each column --noheadings to turn off headings See man pages for full field lists and meanings of attribute letters. [Next bit still undocumented and could change slightly] Defaults, including column selections & ordering, can be changed with config file entries in a new "report" section: aligned, buffered, headings - set to 0 or 1 separator - string pvs_sort, pvs_cols, pvs_cols_verbose - strings of column lists (like -o or -O) Similarly for lvs_*, vgs_*, segs_* units (string) & suffix (0 or 1) can be set in the "global" section. Alasdair -- agk@uk.sistina.com _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
