OpenForum RSS: FreeBSD ZFS

FreeBSD ZFS (sweer)

Tue, 10 Nov 2009 15:43:46 GMT

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lavr �� sysadmins.ru ��

FreeBSD ZFS (sweer)

Tue, 10 Nov 2009 12:32:34 GMT

>[�� ]
>...
>Keep pool space under 80% utilization to maintain pool performance. Currently, pool
>performance can degrade when a pool is very full and file
>systems are updated frequently, such as on a busy mail server.
>Full pools might cause a performance penalty, but no other issues.
>If the primary workload is immutable files (write once, never remove),
>then you can keep a pool in the 95-98% utilization range.
>Keep in mind that even with mostly static content in the
>95-98% range, write, read, and resilvering performance might suffer.
>...

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FreeBSD ZFS (Dorlas)

Tue, 10 Nov 2009 12:13:29 GMT

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http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide

Storage Pool Performance Considerations
General Storage Pool Performance Considerations
...
Keep pool space under 80% utilization to maintain pool performance. Currently, pool performance can degrade when a pool is very full and file systems are updated frequently, such as on a busy mail server. Full pools might cause a performance penalty, but no other issues. If the primary workload is immutable files (write once, never remove), then you can keep a pool in the 95-98% utilization range. Keep in mind that even with mostly static content in the 95-98% range, write, read, and resilvering performance might suffer.
...

FreeBSD ZFS (sweer)

Tue, 10 Nov 2009 11:58:21 GMT

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FreeBSD ZFS (Dorlas)

Tue, 10 Nov 2009 11:31:07 GMT

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FreeBSD ZFS (lavr)

Tue, 10 Nov 2009 11:25:03 GMT

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>
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FreeBSD ZFS (Dorlas)

Tue, 10 Nov 2009 11:00:43 GMT

>[�� ]
>da1: 17125052MB (35072106497 512 byte sectors: 255H 63S/T 2183137C)
>--------------------------------------------------//��
>(probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
>(probe0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
>(probe0:umass-sim0:0:0:0): SCSI Status: Check Condition
>(probe0:umass-sim0:0:0:0): NOT READY asc:3a,0
>(probe0:umass-sim0:0:0:0): Medium not present
>(probe0:umass-sim0:0:0:0): Unretryable error
>GEOM: da1: corrupt or invalid GPT detected.
>GEOM: da1: GPT rejected -- may not be recoverable.

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�� :
>DSP 15.8T 492G 199 40 6.44M 1.16M

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FreeBSD ZFS (sweer)

Tue, 10 Nov 2009 10:45:43 GMT

>[�� ]
>> ONLINE
>> 0 0
>>0
>> da1
>> ONLINE
>> 0 0
>>0
>>raidz �� .
>
>�� : /var/run/dmesg.boot

real memory = 8589934592 (8192 MB)
avail memory = 8248455168 (7866 MB)
--------------------------------------------------------//��
3ware device driver for 9000 series storage controllers, version: 3.70.05.001
twa0: <3ware 9000 series Storage Controller> port 0x2000-0x203f mem 0xd8000000-0xd9ffffff,0xda100000-0xda100fff irq 16 at device 1.0 on pci5
-----------------------------------------------------------//��
da1 at twa0 bus 0 target 0 lun 1
da1: <AMCC 9550SX-16M DISK 3.08> Fixed Direct Access SCSI-5 device
da1: 100.000MB/s transf

FreeBSD ZFS (Dorlas)

Tue, 10 Nov 2009 10:37:13 GMT

>[�� ]
>CKSUM
> DSR
> ONLINE
> 0 0
>0
> da1
> ONLINE
> 0 0
>0
>raidz �� .

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