ZFS with 32-bit, non-x86 kernel
Bernd Walter
ticso at cicely7.cicely.de
Sat Oct 5 09:15:05 UTC 2019
On Fri, Oct 04, 2019 at 05:05:25PM +0300, Andriy Gapon wrote:
>
> Does anyone use ZFS with a 32-bit kernel, that is also not i386 ?
> If you do, could you please let me know? Along with uname -rmp output.
> Thank you!
[51]wb1# uname -rmp
12.0-RELEASE arm armv7
It is a wandboard qaud with iMX6 and 2G RAM.
I'm using two uSD cards with zroot.
I'm also using the same setup on a raspberry Pi1:
[13]time1# uname -rmp
12.0-RELEASE arm armv6
But 512MB RAM are to low for zroot.
It technically does work, but hoks up the CPU in arc_reclaim_thread when
a scrub runs and since it takes forever it always runs.
last pid: 80786; load averages: 6.56, 5.86, 5.75 up 185+05:51:55 11:10:04
372 threads: 5 running, 349 sleeping, 18 waiting
CPU: 0.1% user, 0.0% nice, 86.9% system, 3.8% interrupt, 9.2% idle
Mem: 4960K Active, 38M Inact, 128M Wired, 259M Free
ARC: 24M Total, 8591K MFU, 8896K MRU, 34K Anon, 251K Header, 6888K Other
2676K Compressed, 74M Uncompressed, 28.31:1 Ratio
Swap:
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU COMMAND
8 root -8 - 0 96K arc_re 1597.2 53.94% zfskern{arc_reclaim_thread}
10 root 155 ki31 0 8192 RUN 1765.3 9.26% idle
0 root -8 - 0 2064K - 75.7H 2.63% kernel{dp_sync_taskq}
11 root -80 - 0 144K WAIT 67.8H 1.88% intr{intc0,28: bcm_dma0}
20 root -8 - 0 8192 mmcreq 39.0H 1.31% mmcsd0: mmc/sd card
12 root -8 - 0 24K - 27.4H 0.87% geom{g_down}
11 root -60 - 0 144K WAIT 28.6H 0.74% intr{swi4: clock (0)}
11 root -88 - 0 144K WAIT 21.1H 0.66% intr{intc0,70: +}
12 root -8 - 0 24K - 19.3H 0.64% geom{g_up}
[16]time1# zpool status
pool: zroot
state: ONLINE
scan: scrub in progress since Mon Jun 10 03:58:19 2019
34.0G scanned at 3.52K/s, 867M issued at 89/s, 1.77G total
0 repaired, 47.78% done, no estimated completion time
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
diskid/DISK-0000081Cs2a ONLINE 0 0 0
da0s2a ONLINE 0 0 0
errors: No known data errors
--
B.Walter <bernd at bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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