LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Enterprise Linux Forums > Linux - Enterprise
User Name
Password
Linux - Enterprise This forum is for all items relating to using Linux in the Enterprise.

Notices


Reply
  Search this Thread
Old 12-12-2007, 11:31 AM   #1
mrstauf
LQ Newbie
 
Registered: Dec 2007
Distribution: Suse Enterprise 10
Posts: 3

Rep: Reputation: 0
Smart Array P400 Controller, Reiserfs, and Growing.


I'm afraid that at this time this will be a rather vague explanation of my problem, but this may set me in the right direction.

Currently I am running an HP Proliant machine with a Smart Array P400 Controller for raid 5 with 4 146gb disks to keep our code safe from any one drive failure. In the near future I'll have to expand the 411gb I have for data (I'll be shooting for over a terrabyte when the day comes).

From everything I have read I believe this setup to allow me to add some drives to this array and nondestructively grow my array with an HP utility and then nondestructively use a program like GUN Partd or Partition magic to increase the end point of my reiserfs partition.

I have two empty slots left out of 8 (2 are being used for one array, 4 four the raid 5 array, and then the two empty slots).

Does this sound possibly? Or does it sound likely that to add new space I'll have to recreate the array?
 
Old 12-13-2007, 03:59 AM   #2
dyasny
Member
 
Registered: Dec 2007
Location: Canada
Distribution: RHEL,Fedora
Posts: 995

Rep: Reputation: 115Reputation: 115
you can grow the array with the HP utility, though if you do lose data HP will probably deny responsibility, so backup everything before you do.
however, after you grow the array, the partition sizes will remain the same, so you'll have to grow the partitions using LVM (if you implemented it) or something like partition magic. this is even more dangerous.
 
Old 12-13-2007, 02:08 PM   #3
mrstauf
LQ Newbie
 
Registered: Dec 2007
Distribution: Suse Enterprise 10
Posts: 3

Original Poster
Rep: Reputation: 0
So at this point in theory after using HP to grow the array (which will be viewed as the single disk by the OS) I'll have unallocated space and in theory using a disk partition program to move the end point should work...but there is danger in the fact I could lose all my data (which I will backup)?

But it SHOULD work.
 
Old 12-13-2007, 03:52 PM   #4
mrstauf
LQ Newbie
 
Registered: Dec 2007
Distribution: Suse Enterprise 10
Posts: 3

Original Poster
Rep: Reputation: 0
Actually, it appears that I will be good to go with using the resize_reiserfs utility.

Here is a brief summary of how it works.

In a quick test it works pretty fast.

http://www.eng.uwaterloo.ca/twiki/bi...ResizeReiserFS
 
Old 12-13-2007, 04:15 PM   #5
LoneGunman
LQ Newbie
 
Registered: Oct 2007
Distribution: Red Hat ES 4
Posts: 10

Rep: Reputation: 0
I was also running HP Proliant H/W (DL 360 G5) with an attached MSA500. Let me tell you, using the HP utility worked, but don't expext it to be fast. It took around 48 hours to grow ~ 300Gb. I had added 1 x 300Gb SAS drive to the MSA. I did not have a lot of faith because of how long it was taking, but it worked.

One thing to point out to you. Interestingly enough, the HP utility counted up the number of new cylinders differently than did the Red Hat ES4 LVM. That was a nightmare to find the sweetspot. Good Luck to you.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
what linux version for p400 sas controller renegade7 Linux - General 3 06-11-2007 02:46 AM
Rhel 4 And Hp Smart Array P400 renegade7 Linux - Hardware 2 05-31-2007 04:41 AM
mdadm problems with growing an existing array mjcramer Fedora 2 07-11-2005 08:28 PM
Compaq smart array controller with Red Hat 8, etc naijaguy Linux - Hardware 0 08-12-2004 10:12 AM
HP 641 Smart Array Controller and Suse Enterprise Server 8.0 abdullah121 Linux - Hardware 0 09-16-2003 05:06 AM

LinuxQuestions.org > Forums > Enterprise Linux Forums > Linux - Enterprise

All times are GMT -5. The time now is 04:40 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration