docs/135983: "The Z File System" - title is misleading and causes search issue
Dan Naumov
dan.naumov at gmail.com
Wed Jun 24 08:20:05 UTC 2009
The following reply was made to PR docs/135983; it has been noted by GNATS.
From: Dan Naumov <dan.naumov at gmail.com>
To: bug-followup at FreeBSD.org, dan.naumov at gmail.com
Cc:
Subject: Re: docs/135983: "The Z File System" - title is misleading and causes
search issue
Date: Wed, 24 Jun 2009 11:14:12 +0300
Hopefully you didn't take an offense to my initial PR, the Handbook
guide was what actually had me started on getting into ZFS with
FreeBSD :)
Either way, I had some other changes in mind as well, for example the
RAID-Z example uses a pool made of 2 disks. While it will obviously
work, all SUN documentation indicates that the suggested amount of
vdevs for a RAIDZ or RAIDZ2 pool is between 3 and 9 devices and that
bigger pools should be broken up to be made of smaller groups of vdevs
(for example 2 x 7disk RAIDZ for a single pool 14 disk setup).. Using
RAIDZ with just 2 disks will result in slower performance than simply
using a ZFS mirror and using more than 9 disks is likely to cause
problems with parity computations (I have already heard stories of
people running into Bad Things (tm) while using a 24-disk RAIDZ-2 and
a 14-disk RAIDZ configurations during resilvering and scrubs). Things
like this definitely deserve a mention.
If you don't have much time, I could see if I could find a few moments
over the next week or 2 to make a few changes. What's the proposed
format of change submissions? Are edited files ok or does one need to
submit patches and if it's the latter, whats the syntax for making
properly suited diffs?
- Sincerely,
Dan Naumov
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