<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
OK, so lets say I make this swap. the last upgrade I'd like to do is my
hard drives. <br>
<br>
Does anyone have experience with upgrading the HD's in a linux raid?
I've got a 73 gig with the OS installed in it, and 2 73gigs running
raid with my /home directory running on it. I want to make those 2 73
gig hd's actually be my two 135gig hd's. <br>
<br>
Can I just pull drive 3 and install a 135 gig, wait for the rebuild,
the pull drive 2, install a second 135 gig,wait for the rebuild, and
done? then when things settle down go into my config utility and
resize the drives?<br>
<br>
that's the way it's supposed to work right? that's why I've got raid
running on my production servers? or should I forget about upgrading
my hard drives and go back to sleep? <br>
<br>
<br>
<br>
g.<br>
<br>
<br>
<br>
<a class="moz-txt-link-abbreviated" href="mailto:john@netdirect.ca">john@netdirect.ca</a> wrote:
<blockquote
cite="mid:OFD59DD5FE.3CB691AB-ON852576AB.00571E88-852576AB.005D6782@netdirect.ca"
type="cite">
<pre wrap=""><a class="moz-txt-link-abbreviated" href="mailto:kwlug-disc-bounces@kwlug.org">kwlug-disc-bounces@kwlug.org</a> wrote on 01/14/2010 10:49:55 AM:
</pre>
<blockquote type="cite">
<pre wrap="">From: "Insurance Squared Inc." <a class="moz-txt-link-rfc2396E" href="mailto:gcooke@insurancesquared.com"><gcooke@insurancesquared.com></a>
I've got two almost identical servers:
1) live server, dell 1750,
- 1 xeon cpu
- 1 gig ram
- no hardware raid, running 1 drive for OS, 2 drives for data on linux
</pre>
</blockquote>
<pre wrap=""><!---->raid
</pre>
<blockquote type="cite">
<pre wrap="">This server is live
2) backup server, dell 1750
- 2 xeon cpu's
- 8 gigs of ram
- has a hardware raid controller in it that I don't want to make use of
How boring will my day be if I pull the three drives from server 1 and
insert them into server B (I don't mind a few minutes of downtime to
make the switch and reboot)? Did I just upgrade my server? Or is linux
</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
<blockquote type="cite">
<pre wrap="">likely to insert some excitement into my life?
</pre>
</blockquote>
<pre wrap=""><!---->
I'm guessing that because both are Dell 1750s that both have the same
chipsets, video, network, etc., etc. Checking 'lspci' on both will tell
you. If they are the same it will make it easier to move. You will still
be prompted to reconfigure network controllers.
The big change in moving disks is if you change the controller the disk is
on or the order of the disks. If the root disk is on a SCSI controller
then moving to another SCSI controller of the same model (really the same
driver) is easy. SATA tends to be fine. But from SCSI to RAID card or RAID
card to a different RAID card requires work that you probably don't want
to do.
Also the order is important. Many Linuxes still need the disk to be on the
same ordinal device, so controller 0, disk 0, or that it be on /dev/sda,
not all of a sudden on /dev/sdb. Things have been changing so that UUIDs
are used to find disks, but grub may still be confused with a switch.
Here is what I recommend:
Switch them, making sure to keep disks connected to the corresponding
hardware in the other box.
Alternatively:
You could move the extra RAM and CPU from one box to another.
As long as the system boots then fixing drive mount problems or network
problems is easy.
NOTE: If you have a live CD that is of similar vintage (just use the same
distro and version) to the OS installed then fixing boot issues is usually
simple, but it can often take a couple of boots to get it right.
John Van Ostrand
Net Direct Inc.
CTO, co-CEO
564 Weber St. N. Unit 12
map
Waterloo, ON N2L 5C6
<a class="moz-txt-link-abbreviated" href="mailto:john@netdirect.ca">john@netdirect.ca</a>
Ph: 866-883-1172
ext.5102
Linux Solutions / IBM Hardware
Fx: 519-883-8533
_______________________________________________
kwlug-disc_kwlug.org mailing list
<a class="moz-txt-link-abbreviated" href="mailto:kwlug-disc_kwlug.org@kwlug.org">kwlug-disc_kwlug.org@kwlug.org</a>
<a class="moz-txt-link-freetext" href="http://astoria.ccjclearline.com/mailman/listinfo/kwlug-disc_kwlug.org">http://astoria.ccjclearline.com/mailman/listinfo/kwlug-disc_kwlug.org</a>
</pre>
</blockquote>
<br>
</body>
</html>