Hi all
I have this server with some 50TB disk space. It originally had 30TB on WD
Greens, was filled quite full, and another storage chassis was added. Now,
space problem gone, fine, but what about speed? Three of the VDEVs are quite
full, as indicated below. VDEV #3 (the one with the spare active) just spent
some 72 hours resilvering a 2TB drive. Now, those green drives suck quite hard,
but not _that_ hard. I'm guessing the reason for this slowdown is the fill of
those three first VDEVs.
Now, is there a way, manually or automatically, to somehow balance the data
across these LVOLs? My first guess is that doing this _automatically_ will
require block pointer rewrite, but then, is there way to hack this thing by
hand?
PS: Yeah, I know, it's more disks on the fourth VDEV than on the first three,
but this was how wi chose to do it.
PPS: c10d1s1 and c11d0s1 is the SLOG mirror, even though zpool iostat doesn't
show it (zfs status does).
r...@urd:~# zpool iostat -v
capacity operations bandwidth
pool alloc free read write read write
------------ ----- ----- ----- ----- ----- -----
dpool 38.7T 20.9T 302 39 17.3M 2.20M
raidz2 12.1T 552G 81 3 4.72M 205K
c7t2d0 - - 34 2 1.18M 41.5K
c7t3d0 - - 34 2 1.18M 41.5K
c7t4d0 - - 33 2 1.18M 41.5K
c7t5d0 - - 33 2 1.18M 41.5K
c7t6d0 - - 34 2 1.18M 41.5K
c7t7d0 - - 33 2 1.18M 41.5K
c8t0d0 - - 35 2 1.18M 41.5K
raidz2 12.4T 277G 84 5 4.81M 278K
c8t1d0 - - 35 3 1.22M 56.1K
c8t2d0 - - 34 3 1.22M 56.1K
c8t3d0 - - 35 3 1.22M 56.1K
c8t4d0 - - 35 3 1.22M 56.1K
c8t5d0 - - 34 3 1.22M 56.1K
c8t6d0 - - 35 3 1.22M 56.1K
c8t7d0 - - 34 3 1.22M 56.1K
raidz2 12.0T 631G 101 7 6.50M 294K
c9t0d0 - - 39 3 1.56M 58.7K
c9t1d0 - - 39 3 1.56M 58.7K
c9t2d0 - - 39 3 1.56M 58.7K
c9t3d0 - - 39 3 1.56M 58.7K
spare - - 472 42 7.16M 83.9K
c9t4d0 - - 39 3 1.56M 58.7K
c9t7d0 - - 0 259 2 6.85M
c9t5d0 - - 39 3 1.56M 58.7K
c9t6d0 - - 38 3 1.56M 58.7K
mirror 11.8M 4.96G 0 14 0 1.03M
c10d1s0 - - 0 14 0 1.03M
c11d0s0 - - 0 14 0 1.03M
raidz2 2.24T 19.5T 33 8 1.23M 417K
c14t9d0 - - 11 2 212K 42.3K
c14t10d0 - - 11 2 208K 42.3K
c14t11d0 - - 12 2 211K 42.3K
c14t12d0 - - 11 2 211K 42.3K
c14t13d0 - - 11 2 207K 42.3K
c14t14d0 - - 12 2 211K 42.3K
c14t15d0 - - 11 2 211K 42.3K
c14t16d0 - - 11 2 208K 42.3K
c14t17d0 - - 12 2 212K 42.3K
c14t18d0 - - 11 2 212K 42.3K
c14t19d0 - - 11 2 209K 42.3K
c14t20d0 - - 12 2 211K 42.3K
cache - - - - - -
c10d1s1 69.5G 7.88M 6 6 314K 765K
c11d0s1 69.5G 6.59M 6 6 313K 766K
--
Vennlige hilsener / Best regards
roy
--
Roy Sigurd Karlsbakk
(+47) 97542685
r...@karlsbakk.net
http://blogg.karlsbakk.net/
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er
et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av
idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og
relevante synonymer på norsk.
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