From: Hans Reiser <reiser@namesys.com>
To: Jeremy Howard <jh_lists@fastmail.fm>
Cc: ReiserFS List <reiserfs-list@namesys.com>,
mose Jadon <mose@uMEM.COM>, Nikita Danilov <Nikita@Namesys.COM>
Subject: Re: External journals and NVRAM devices
Date: Fri, 01 Nov 2002 23:40:07 +0300 [thread overview]
Message-ID: <3DC2E6A7.3060801@namesys.com> (raw)
In-Reply-To: <3DC21358.5040808@fastmail.fm>
Jeremy Howard wrote:
> Hi all,
>
> I'm looking at buying solid state drives / NVRAM drives for our servers
> to hold an external ReiserFS journal.
>
> We are using 2.4.20pre11, and Chris Mason's data logging patches.
>
> I'm looking for any tips on how large the journal is when using
> data=journal, and whether the external log patches are stable and work OK
> in data=journal mode. Is there a command to show the current journal
> size? Does the size vary over time? We need to ensure we buy a card with
> enough memory so this is important information for us.
>
> Is anyone currently using NVRAM for the journal? If so, how do you find
> the performance of this configuration?
>
> TIA,
> Jeremy
>
>
>
>
You might contact the umem folks. They are working with us.
Edward, I want those benchmarks produced in a readable form. Nikita,
make sure that this happens, and that Edward produces a benchmark with
an explanation of the significance of what was measured that is
understandable to persons who aren't him.
--
Hans
next prev parent reply other threads:[~2002-11-01 20:40 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-01 5:38 External journals and NVRAM devices Jeremy Howard
2002-11-01 6:29 ` Andreas Dilger
2002-11-01 14:30 ` Edward Shishkin
2002-11-01 20:40 ` Hans Reiser [this message]
2002-11-01 21:45 ` Edward Shishkin
2002-11-01 20:41 ` Hans Reiser
2002-11-02 3:04 ` Andrew Clausen
-- strict thread matches above, loose matches on Subject: below --
2002-11-01 7:29 JP Howard
2002-11-01 7:49 ` Serge Kolodeznyh
2002-11-01 15:33 ` Len Sorensen
2002-11-01 15:10 ` Edward Shishkin
2002-11-01 20:38 JP Howard
2002-11-01 20:57 ` Valdis.Kletnieks
2002-11-01 21:57 ` Edward Shishkin
2002-11-01 21:58 ` Edward Shishkin
2002-11-01 21:37 JP Howard
2002-11-04 13:16 ` Chris Mason
2002-11-05 21:23 ` reiser
2002-11-06 20:18 ` Andreas Dilger
2002-11-06 20:42 ` Chris Mason
2002-11-05 22:12 JP Howard
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