Hi. On Fri, Jan 04, 2019 at 08:13:38AM -0500, rhkra...@gmail.com wrote: > On Friday, January 04, 2019 03:49:37 AM Andy Smith wrote: > > It's unfortunate that LVM was not used as it would make juggling > > space between the multiple filesystems a lot easier. Oh well. > > I guess I should consider using LVM on my next install. Does it incur any > overhead during normal disk operations (I mean, like an extra level of > indirection or anything like that)? > > Aside: just for laughs, my root (on Wheezy) is: > > rhk@s19:/rhk/askRhk$ df / > Filesystem 1K-blocks Used > Available Use% Mounted on > /dev/disk/by-uuid/8<elided>9 1921036 465852 1357600 26% /
# pvs PV VG Fmt Attr PSize PFree /dev/md10 nas lvm2 a-- 14.55t 10.43t # hdparm -Tt /dev/md10 /dev/md10: Timing cached reads: 1224 MB in 2.00 seconds = 612.05 MB/sec Timing buffered disk reads: 1210 MB in 3.00 seconds = 403.28 MB/sec # hdparm -Tt /dev/nas/root /dev/nas/root: Timing cached reads: 1224 MB in 2.00 seconds = 611.55 MB/sec Timing buffered disk reads: 1154 MB in 3.00 seconds = 384.42 MB/sec I see a difference, but I's something I can live with. Reco
