UbuntuNewbie
2015-02-25 14:09:05 UTC
After zfs sending ALL of my MAIN pool into BACKUP, i noticed a difference
(4 GB more space usage in MAIN):
NAME PROPERTY VALUE
------------------------------------------
BACKUP size 10,9T
BACKUP allocated 7,99T
BACKUP free 2,89T
BACKUP/20percent refreservation 1,45T
BACKUP available 366G
------------------------------------------
MAIN size 10,9T
MAIN allocated 7,99T
MAIN free 2,88T
MAIN/20percent refreservation 1,45T
MAIN available 362G
Both pools have the same geometry (4+2 RAIDZ2 on 2TB drives)
no changes occurred to compression attribute after filesystems had been
created, so no difference in compression.
So i went on to drill don into the differences and found none, apart from
directories themselves. 1 Example:
for i in "{BACKUP,MAIN}"; do echo $i;bash -c "ls -ls
$i/usr/share/texmf/tex/texinfo;du $i/usr/share/texmf/tex/texinfo";done
{BACKUP,MAIN}
BACKUP/usr/share/texmf/tex/texinfo:
insgesamt 288
169 -rw-r--r-- 1 root root 285382 Apr 17 2012 texinfo.tex
9 -rw-r--r-- 1 root root 2339 Apr 17 2012 txi-cs.tex
9 -rw-r--r-- 1 root root 2505 Apr 17 2012 txi-de.tex
9 -rw-r--r-- 1 root root 2328 Apr 17 2012 txi-en.tex
9 -rw-r--r-- 1 root root 1944 Apr 17 2012 txi-es.tex
9 -rw-r--r-- 1 root root 2460 Apr 17 2012 txi-fr.tex
9 -rw-r--r-- 1 root root 2348 Apr 17 2012 txi-it.tex
9 -rw-r--r-- 1 root root 2243 Apr 17 2012 txi-nb.tex
9 -rw-r--r-- 1 root root 2218 Apr 17 2012 txi-nl.tex
9 -rw-r--r-- 1 root root 2334 Apr 17 2012 txi-pl.tex
9 -rw-r--r-- 1 root root 2142 Apr 17 2012 txi-pt.tex
9 -rw-r--r-- 1 root root 2299 Apr 17 2012 txi-ru.tex
9 -rw-r--r-- 1 root root 2147 Apr 17 2012 txi-sr.tex
9 -rw-r--r-- 1 root root 2574 Apr 17 2012 txi-tr.tex
9 -rw-r--r-- 1 root root 2160 Apr 17 2012 txi-uk.tex
MAIN/usr/share/texmf/tex/texinfo:
insgesamt 519
400 -rw-r--r-- 1 root root 285382 Apr 17 2012 texinfo.tex
9 -rw-r--r-- 1 root root 2339 Apr 17 2012 txi-cs.tex
9 -rw-r--r-- 1 root root 2505 Apr 17 2012 txi-de.tex
9 -rw-r--r-- 1 root root 2328 Apr 17 2012 txi-en.tex
9 -rw-r--r-- 1 root root 1944 Apr 17 2012 txi-es.tex
9 -rw-r--r-- 1 root root 2460 Apr 17 2012 txi-fr.tex
9 -rw-r--r-- 1 root root 2348 Apr 17 2012 txi-it.tex
9 -rw-r--r-- 1 root root 2243 Apr 17 2012 txi-nb.tex
9 -rw-r--r-- 1 root root 2218 Apr 17 2012 txi-nl.tex
9 -rw-r--r-- 1 root root 2334 Apr 17 2012 txi-pl.tex
9 -rw-r--r-- 1 root root 2142 Apr 17 2012 txi-pt.tex
9 -rw-r--r-- 1 root root 2299 Apr 17 2012 txi-ru.tex
9 -rw-r--r-- 1 root root 2147 Apr 17 2012 txi-sr.tex
9 -rw-r--r-- 1 root root 2574 Apr 17 2012 txi-tr.tex
9 -rw-r--r-- 1 root root 2160 Apr 17 2012 txi-uk.tex
304 BACKUP/usr/share/texmf/tex/texinfo
536 MAIN/usr/share/texmf/tex/texinfo
This looks to me like all is well, apart from du reporting a difference i
cannot explain.
Both pools are ashift=12, well aligned. I have no idea, what might have
caused this (and many other) difference(s alike)
Anyone understands, what might be going on here?
Just for completeness: BACKUP only lacks zlog & cache devices:
# zpool status
pool: BACKUP
state: ONLINE
scan: none requested
config:
NAME STATE READ
WRITE CKSUM
BACKUP ONLINE
0 0 0
raidz2-0 ONLINE
0 0 0
usb-ST2000VM_003-1ET164_000000000000-0:0-part1 ONLINE
0 0 0
usb-ST2000VM_003-1ET164_000000000000-0:1-part1 ONLINE
0 0 0
usb-ST2000VM_003-1ET164_000000000000-0:2-part1 ONLINE
0 0 0
usb-WDC_WD20_EARX-00PASB0_000000000000-0:3-part1 ONLINE
0 0 0
usb-ST2000DL_003-9VT166_000000000000-0:4-part1 ONLINE
0 0 0
usb-WDC_WD20_EARX-00PASB0_000000000000-0:5-part1 ONLINE
0 0 0
errors: No known data errors
pool: MAIN
state: ONLINE
scan: scrub repaired 0 in 4h31m with 0 errors on Thu Feb 12 19:06:05 2015
config:
NAME STATE READ WRITE
CKSUM
MAIN ONLINE 0 0
0
raidz2-0 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z0T0F9-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z12F05-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z1368B-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z11PP1-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z12JAD-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z1368R-part2 ONLINE 0 0
0
logs
ata-Solidata_SSD_IDLX-YATOP-000000008-part2 ONLINE 0 0
0
cache
ata-Solidata_SSD_IDLX-YATOP-000000008-part3 ONLINE 0 0
0
errors: No known data errors
And this is zol 0.6.3 (stable)
To unsubscribe from this group and stop receiving emails from it, send an email to zfs-discuss+***@zfsonlinux.org.
(4 GB more space usage in MAIN):
NAME PROPERTY VALUE
------------------------------------------
BACKUP size 10,9T
BACKUP allocated 7,99T
BACKUP free 2,89T
BACKUP/20percent refreservation 1,45T
BACKUP available 366G
------------------------------------------
MAIN size 10,9T
MAIN allocated 7,99T
MAIN free 2,88T
MAIN/20percent refreservation 1,45T
MAIN available 362G
Both pools have the same geometry (4+2 RAIDZ2 on 2TB drives)
no changes occurred to compression attribute after filesystems had been
created, so no difference in compression.
So i went on to drill don into the differences and found none, apart from
directories themselves. 1 Example:
for i in "{BACKUP,MAIN}"; do echo $i;bash -c "ls -ls
$i/usr/share/texmf/tex/texinfo;du $i/usr/share/texmf/tex/texinfo";done
{BACKUP,MAIN}
BACKUP/usr/share/texmf/tex/texinfo:
insgesamt 288
169 -rw-r--r-- 1 root root 285382 Apr 17 2012 texinfo.tex
9 -rw-r--r-- 1 root root 2339 Apr 17 2012 txi-cs.tex
9 -rw-r--r-- 1 root root 2505 Apr 17 2012 txi-de.tex
9 -rw-r--r-- 1 root root 2328 Apr 17 2012 txi-en.tex
9 -rw-r--r-- 1 root root 1944 Apr 17 2012 txi-es.tex
9 -rw-r--r-- 1 root root 2460 Apr 17 2012 txi-fr.tex
9 -rw-r--r-- 1 root root 2348 Apr 17 2012 txi-it.tex
9 -rw-r--r-- 1 root root 2243 Apr 17 2012 txi-nb.tex
9 -rw-r--r-- 1 root root 2218 Apr 17 2012 txi-nl.tex
9 -rw-r--r-- 1 root root 2334 Apr 17 2012 txi-pl.tex
9 -rw-r--r-- 1 root root 2142 Apr 17 2012 txi-pt.tex
9 -rw-r--r-- 1 root root 2299 Apr 17 2012 txi-ru.tex
9 -rw-r--r-- 1 root root 2147 Apr 17 2012 txi-sr.tex
9 -rw-r--r-- 1 root root 2574 Apr 17 2012 txi-tr.tex
9 -rw-r--r-- 1 root root 2160 Apr 17 2012 txi-uk.tex
MAIN/usr/share/texmf/tex/texinfo:
insgesamt 519
400 -rw-r--r-- 1 root root 285382 Apr 17 2012 texinfo.tex
9 -rw-r--r-- 1 root root 2339 Apr 17 2012 txi-cs.tex
9 -rw-r--r-- 1 root root 2505 Apr 17 2012 txi-de.tex
9 -rw-r--r-- 1 root root 2328 Apr 17 2012 txi-en.tex
9 -rw-r--r-- 1 root root 1944 Apr 17 2012 txi-es.tex
9 -rw-r--r-- 1 root root 2460 Apr 17 2012 txi-fr.tex
9 -rw-r--r-- 1 root root 2348 Apr 17 2012 txi-it.tex
9 -rw-r--r-- 1 root root 2243 Apr 17 2012 txi-nb.tex
9 -rw-r--r-- 1 root root 2218 Apr 17 2012 txi-nl.tex
9 -rw-r--r-- 1 root root 2334 Apr 17 2012 txi-pl.tex
9 -rw-r--r-- 1 root root 2142 Apr 17 2012 txi-pt.tex
9 -rw-r--r-- 1 root root 2299 Apr 17 2012 txi-ru.tex
9 -rw-r--r-- 1 root root 2147 Apr 17 2012 txi-sr.tex
9 -rw-r--r-- 1 root root 2574 Apr 17 2012 txi-tr.tex
9 -rw-r--r-- 1 root root 2160 Apr 17 2012 txi-uk.tex
304 BACKUP/usr/share/texmf/tex/texinfo
536 MAIN/usr/share/texmf/tex/texinfo
This looks to me like all is well, apart from du reporting a difference i
cannot explain.
Both pools are ashift=12, well aligned. I have no idea, what might have
caused this (and many other) difference(s alike)
Anyone understands, what might be going on here?
Just for completeness: BACKUP only lacks zlog & cache devices:
# zpool status
pool: BACKUP
state: ONLINE
scan: none requested
config:
NAME STATE READ
WRITE CKSUM
BACKUP ONLINE
0 0 0
raidz2-0 ONLINE
0 0 0
usb-ST2000VM_003-1ET164_000000000000-0:0-part1 ONLINE
0 0 0
usb-ST2000VM_003-1ET164_000000000000-0:1-part1 ONLINE
0 0 0
usb-ST2000VM_003-1ET164_000000000000-0:2-part1 ONLINE
0 0 0
usb-WDC_WD20_EARX-00PASB0_000000000000-0:3-part1 ONLINE
0 0 0
usb-ST2000DL_003-9VT166_000000000000-0:4-part1 ONLINE
0 0 0
usb-WDC_WD20_EARX-00PASB0_000000000000-0:5-part1 ONLINE
0 0 0
errors: No known data errors
pool: MAIN
state: ONLINE
scan: scrub repaired 0 in 4h31m with 0 errors on Thu Feb 12 19:06:05 2015
config:
NAME STATE READ WRITE
CKSUM
MAIN ONLINE 0 0
0
raidz2-0 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z0T0F9-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z12F05-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z1368B-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z11PP1-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z12JAD-part2 ONLINE 0 0
0
ata-ST2000DM001-1ER164_Z4Z1368R-part2 ONLINE 0 0
0
logs
ata-Solidata_SSD_IDLX-YATOP-000000008-part2 ONLINE 0 0
0
cache
ata-Solidata_SSD_IDLX-YATOP-000000008-part3 ONLINE 0 0
0
errors: No known data errors
And this is zol 0.6.3 (stable)
To unsubscribe from this group and stop receiving emails from it, send an email to zfs-discuss+***@zfsonlinux.org.