I admit it. I'm a RAID virgin.
However, after a disastrous failure of the sole drive
I wasn't backing up, I decided to go RAID-5 under
Slack 10.2 (first time ever with RAID-5).
The config:
Asus P5GL-MX (ICH6) mobo w/1 GB RAM, 4 x SATA ports
P4 3.0G/1M
3 x WD2000JS 200.0 GB SATA drives
First, a question: the BIOS on this machine seems to
list the SATA ports as "third/fourth IDE
master/slave". Further, the documentation seems to say
that SATA 1/2 are "master" and SATA 3/4 are "slave"
(black and red connectors, respectively).
My understanding is that SATA drives are each on
separate buses. Is this because the BIOS offers a
P-ATA emulation mode for SATA and it makes it "easier"
to understand for novices to show them that way?
I ask because people have said that it is not a good
idea to have both IDE masters and slaves on the same
bus as part of a RAID-5 array. I know SATA is
different, but will using three of the SATA ports on
this mobo be OK?
Second, after reading the excellent advice in this
list, I decided that booting from RAID-5 might not be
a good idea. So this is what I've been thinking:
Each disk partitioned alike:
1 30MB
2 8GB (to allow for memory upgrades later)
5 rest_of_disk
mds:
md0 raid1 sda1 sdb1 sdc1
md1 raid1 sda2 sdb2 sdc2
md2 raid5 sda5 sdb5 sdc5
md0 /boot
md1 swap
md2 /
Does this look OK? What should the stripe and chunk
sizes be, considering I'll be going with reiserfs?
Typical usage: development machine, some DB apps with
medium load, read-only mostly, not many writes. Very
few large files (such as multimedia).
Or should I set up separate RAID-5's for /usr and /var
as well?
Lastly, can I install directly to this configuration,
or should I install on a separate disk and move things
into the array?
Andargor
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
