From: Steve Brown <sbrown25@gmail.com>
To: linux-ext4@vger.kernel.org
Subject: Re: ext4 benchmark questions
Date: Fri, 23 Apr 2010 10:49:04 -0500 [thread overview]
Message-ID: <i2g1f4ef0971004230849jb7635a1fg3c3060262d957fb0@mail.gmail.com> (raw)
In-Reply-To: <4BD1C0A4.6070102@redhat.com>
> Also note that having battery backed RAID cards does not mean that your
> drive's write cache will survive a power outage. You need to use vendor
> specific tools usually to poke at the drives and make sure that the write
> cache on the S-ATA disks is properly disabled (unless the LSI firmware does
> something to manage the write cache on the drives).
The server is fully battery backed for up to 45 minutes. Also, LSI
does provide tools to disable the cache when the BBU fails. Its one
of the array config parameters.
prev parent reply other threads:[~2010-04-23 15:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 21:38 ext4 benchmark questions Steve Brown
2010-04-22 21:52 ` Eric Sandeen
2010-04-22 22:11 ` Steve Brown
2010-04-22 22:20 ` Eric Sandeen
2010-04-23 14:42 ` Ric Wheeler
2010-04-23 15:38 ` Steve Brown
2010-04-23 15:45 ` Ric Wheeler
2010-04-23 15:49 ` Steve Brown [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=i2g1f4ef0971004230849jb7635a1fg3c3060262d957fb0@mail.gmail.com \
--to=sbrown25@gmail.com \
--cc=linux-ext4@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).