You want to give ZFS multiple LUNs so it can have redundancy within the
pool. (Mirror or RAIDZ) Otherwise, you will not be able to recover from
certain types of errors. A zpool with a single LUN would only let you
detect the errors.
Karen Chau wrote:
------------------------------------------------------------------------
Subject:
Re: ZFS and storage array
From:
Karen Chau <[EMAIL PROTECTED]>
Date:
Wed, 03 Jan 2007 08:55:56 -0800
To:
[EMAIL PROTECTED]
To:
[EMAIL PROTECTED]
CC:
ITSM-eng <[EMAIL PROTECTED]>
http://docs.sun.com/source/819-0032-10/chapter9.html
The Sun StorEdge 6130 array software is configured with a default
storage profile, storage pool, and storage domain:
* The default storage profile configures associated volumes to
have a RAID-5 RAID level, 512-Kbyte segment size, enabled
read-ahead mode, FC disk type, and a variable number of drives.
* The default storage pool uses the Default profile (RAID-5) and
groups all volumes with the same storage characteristics, as
defined by the storage profile.
If I create a raidz pool using the default storage pool (raidz on top
raid-5), will this make sense or work??
Karen Chau wrote On 01/02/07 15:27,:
We're upgrading to new server with a 6130 storage array (14x 279.396
GB), I want to create a 700G RAID-Z zpool just like our current setup.
How should I do this to get the best performance?
1) Create a volume using 3 disks and create zpool using this volume?
2) Create 3 volumes using 3 disks and create zpool using 3 volumes?
Our application Canary has approx 750 clients uploading to the server
every 10 mins, that's approx 108,000 gzip tarballs per day writing to
the /upload directory. The parser untars the tarball which consists
of 8 ascii files into the /archives directory. /app is our
application and tools (apache, tomcat, etc) directory. We also have
batch jobs that run throughout the day, I would say we read 2 to 3
times more than we write.
directory info
--------------
/app - 40G
/upload - 20G
/archives - 640
itsm-mpk-2# zpool status canary
pool: canary
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
canary ONLINE 0 0 0
raidz ONLINE 0 0 0
c1t1d0 ONLINE 0 0 0
c1t2d0 ONLINE 0 0 0
c1t3d0 ONLINE 0 0 0
errors: No known data errors
Thanks,
Karen
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