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Re: Write cache

From: Larry Rosenman <ler(at)lerctr(dot)org>
To: ohp(at)pyrenet(dot)fr
Cc: pgsql-hackers list <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Write cache
Date: 2004-01-27 21:45:20
Message-ID: 362050000.1075239920@lerlaptop-red.iadfw.net (view raw or flat)
Thread:
Lists: pgsql-hackers

--On Tuesday, January 27, 2004 22:43:34 +0100 ohp(at)pyrenet(dot)fr wrote:

> On Tue, 27 Jan 2004, Larry Rosenman wrote:
>
>> Date: Tue, 27 Jan 2004 15:38:30 -0600
>> From: Larry Rosenman <ler(at)lerctr(dot)org>
>> To: ohp(at)pyrenet(dot)fr, pgsql-hackers list <pgsql-hackers(at)postgresql(dot)org>
>> Subject: Re: Write cache
>>
>> IDE or SCSI?
> SCSI
>>
>> Why do you think the WC is screwing you?
>>
> Because after a sys crash, the most used filesystems (databases) are
> screwed
what VxFS mount options are you using?


>> Which driver(s)?
>>
> Guess... ADPU320
Hrm.

>> LER
>>
>>
>> --On Tuesday, January 27, 2004 22:34:46 +0100 ohp(at)pyrenet(dot)fr wrote:
>>
>> > Because I've lost a lot of data using postgresql (and I know for sure
>> > this should'nt happen) I've gone a bit further reading documentations
>> > on my disks and...
>> >
>> > I have FUJITSU MAP3367NC 36G 10000 rpm disks, those disk have a write
>> > cache of 8Mb, if someone could tell me hox to turn it off... Could'nt
>> > find it in the docs and this could very well explain why a busy
>> > database crashes every time
>> >
>> > Thanks for your help
>> >
>> > --
>> > Olivier PRENANT        	        Tel: +33-5-61-50-97-00 (Work)
>> > 6, Chemin d'Harraud Turrou           +33-5-61-50-97-01 (Fax)
>> > 31190 AUTERIVE                       +33-6-07-63-80-64 (GSM)
>> > FRANCE                          Email: ohp(at)pyrenet(dot)fr
>> > ----------------------------------------------------------------------
>> > --- ----- Make your life a dream, make your dream a reality. (St
>> > Exupery)
>>
>>
>>
>>
>
> --
> Olivier PRENANT        	        Tel: +33-5-61-50-97-00 (Work)
> 6, Chemin d'Harraud Turrou           +33-5-61-50-97-01 (Fax)
> 31190 AUTERIVE                       +33-6-07-63-80-64 (GSM)
> FRANCE                          Email: ohp(at)pyrenet(dot)fr
> -------------------------------------------------------------------------
> ----- Make your life a dream, make your dream a reality. (St Exupery)



-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 972-414-9812                 E-Mail: ler(at)lerctr(dot)org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749

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