16 exabytes of L2ARC?
Nikolay Denev
ndenev at gmail.com
Sat Dec 20 14:32:40 UTC 2014
On Sat, Sep 27, 2014 at 11:13 AM, Nagy, Attila <bra at fsn.hu> wrote:
> On 09/26/14 14:49, Nagy, Attila wrote:
>
>> Hi,
>>
>> Running stable/10 at r271944:
>> # zpool iostat -v
>> capacity operations bandwidth
>> pool alloc free read write read write
>> ---------- ----- ----- ----- ----- ----- -----
>> data 17.3T 40.7T 165 1.24K 1.63M 90.8M
>> da0 4.31T 10.2T 41 318 418K 22.7M
>> da1 4.32T 10.2T 41 317 416K 22.7M
>> da2 4.32T 10.2T 41 317 416K 22.7M
>> da3 4.31T 10.2T 41 317 418K 22.7M
>> cache - - - - - -
>> ada0 513G 16.0E 222 179 1.05M 2.79M
>> ada1 511G 16.0E 222 180 1.05M 2.80M
>> ---------- ----- ----- ----- ----- ----- -----
>>
>> # egrep 'ada.*MB' /var/run/dmesg.boot
>> ada0: 600.000MB/s transfers (SATA 3.x, UDMA5, PIO 512bytes)
>> ada0: 381554MB (781422768 512 byte sectors: 16H 63S/T 16383C)
>> ada1: 600.000MB/s transfers (SATA 3.x, UDMA5, PIO 512bytes)
>> ada1: 381554MB (781422768 512 byte sectors: 16H 63S/T 16383C)
>>
> I've removed the cache devices and re-added them, now it's fine:
> cache - - - - - -
> ada0 355M 372G 24 0 151K 0
> ada1 345M 372G 12 505 71.7K 2.79M
>
>
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Hi,
Did you figure out the root cause of this?
I seem to be having the same issue:
[14:31][root at nas:~]#zpool iostat -v | grep -A1 cache
cache - - - - - -
ada4p1 215G 16.0E 9 3 107K 322K
uname -a : FreeBSD nas.home.lan 10.1-STABLE FreeBSD 10.1-STABLE #14
r274549: Sat Nov 15 14:43:56 UTC 2014
root at nas.home.lan:/usr/obj/usr/src/sys/NAS
amd64
--Nikolay
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