Thread: hard disk half full, system says no space left

hi!

our workgroup set server 10.04.2 kernel 2.6.32-32-server on ssd , data on raid 5 consisting of 4 2tb hard disks, maximum of 6tb space data on raid. having multiple users different amounts of data different scientific data source set lvm on top of raid
--- physical volume ---
pv name /dev/sdb2
vg name home-data
pv size 5,45 tib / not usable 3,00 mib
allocatable yes
pe size 4,00 mib
total pe 1427652
free pe 209335
allocated pe 1218317
,
--- volume group ---
vg name home-data
system id
format lvm2
metadata areas 1
metadata sequence no 7
vg access read/write
vg status resizable
max lv 0
cur lv 6
open lv 6
max pv 0
cur pv 1
act pv 1
vg size 5,45 tib
pe size 4,00 mib
total pe 1427652
alloc pe / size 1218317 / 4,65 tib
free pe / size 209335 / 817,71 gib

these volumes:
lv vg attr lsize origin snap% move log copy% convert
4d home-data -wi-ao 1,82t
apotome home-data -wi-ao 93,13g
genomes home-data -wi-ao 1,82t
home home-data -wi-ao 465,66g
photos home-data -wi-ao 465,66g
srv home-data -wi-ao 9,31g

here problem: volume genomes (or /genomes) half full
sudo df -ah
/dev/mapper/home--data-genomes
1,9t 850g 920g 49% /genomes
system states full whenever try add more data (tried cp , rsync). there no quota set volume (i have quotas in place users home folders. these max amount of disk space, not max file number, , still able move/add files elsewhere there seems no interference).
frankly, @ loss. what's problem?

appreciated.

thanks,

phil

posted phschi

hi!
set lvm on top of raid

not matters @ point, why did this? single filesystem on top of mdadm have accomplished needed to, , decreased complexity in process.

output of

code:

mount

i can see system retaining 5% of disk space if using ext4, , didn't filesystem prevent holding back.

code:

tune2fs -m 0 /genomes

but, not 50%

also, what's output of on mdadm array

code:

mdadm --detail /dev/md0

also, can cd directory , make file there? , what's exact error message gives you?

code:

cd /genomes touch testfile.out rm testfile.out

if works, can make temporary 1gb file there?

code:

dd if=/dev/zero of=/genomes/testfile.out bs=1m count=1000

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