- Community Home
- >
- Servers and Operating Systems
- >
- HPE ProLiant
- >
- ProLiant Servers (ML,DL,SL)
- >
- Re: DL380 G4 - Using RAID for backup
ProLiant Servers (ML,DL,SL)
1753511
Members
5333
Online
108795
Solutions
Forums
Categories
Company
Local Language
юдл
back
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
юдл
back
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-05-2007 05:45 AM
тАО06-05-2007 05:45 AM
DL380 G4 - Using RAID for backup
I have a situation where I am planning to upgrade some DL380 servers. There are 6 hard drives in each - a RAID 1 array of drives 0 & 1, and RAID 5 for drives 2,3,4 and 5. The OS is on the RAID 1 drive.
What I would like to do is break the mirror, upgrade the server, then re-establish the mirror when everything is done. If something fails, use the 2nd drive of the mirror to boot from, reverting back to the pre-upgrade config, then restore the mirror before trying again. But, as the RAID Controller in the DL380 tracks drive serial numbers, I am unsure as to how this is done.
Can anyone give some help here on how to do this (if I can)?
Thanks,
Brian
What I would like to do is break the mirror, upgrade the server, then re-establish the mirror when everything is done. If something fails, use the 2nd drive of the mirror to boot from, reverting back to the pre-upgrade config, then restore the mirror before trying again. But, as the RAID Controller in the DL380 tracks drive serial numbers, I am unsure as to how this is done.
Can anyone give some help here on how to do this (if I can)?
Thanks,
Brian
2 REPLIES 2
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-05-2007 06:17 AM
тАО06-05-2007 06:17 AM
Re: DL380 G4 - Using RAID for backup
Aboslutely this can be done... I just did this on 30+ DL380 systems. We have the same setup... 2 drives in RAID1 and 4 drives RAID5. We upgraded from RedHat Linux EL2.1/3 to EL4. We pulled drive 1 (leaving drive 0 in place), powered up the system, upgraded Linux, ran for a day or so to make sure everything was working, then pushed drive 1 back in. We left drive 1 sitting in the bay for cooling purposes. HP recommends not leaving a bay open. We left the RAID5 container alone... didn't unplug or move any of those drives.
Some notes: when you boot up with only drive 0 in place, the RAID controller will complain. Just ignore the message and let it boot, or you can hit either F1 or F2 to continue.
We had a little more of a project due to the way we did it (cloning one EL4 system to all 30 system) that I'd be glad to share the process with you if desired. If you have a "lot" of systems to upgrade, this is the way to do it. The DL380 was chosen because of its ability to pull RAID configuration from disk OR controller EEPROM.
Some notes: when you boot up with only drive 0 in place, the RAID controller will complain. Just ignore the message and let it boot, or you can hit either F1 or F2 to continue.
We had a little more of a project due to the way we did it (cloning one EL4 system to all 30 system) that I'd be glad to share the process with you if desired. If you have a "lot" of systems to upgrade, this is the way to do it. The DL380 was chosen because of its ability to pull RAID configuration from disk OR controller EEPROM.
Unix is boss.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-05-2007 09:12 AM
тАО06-05-2007 09:12 AM
Re: DL380 G4 - Using RAID for backup
Brian, I just happened to have a need to clone one of our DL380's just now, so I made special notice of what happens in your proposed scenario. Here's what I did:
1) Log into system (Linux) and ran 'shutdown -y -r now'
2) During memory check, I pulled drive 0 out completely and drive 1 out a 1/2" and replaced drive 0 with the "source" DL380 drive 0.
3) When the system got to the controller initialization, it complained that drive 1 needed to be replaced to maintain "RAID 1 Redundancy". No keys to press.
4) I booted the system into single user, changed some network settings, and rebooted.
5) Came up fine and in a couple days I'll slide drive 1 back in and let it rebuild from drive 0.
1) Log into system (Linux) and ran 'shutdown -y -r now'
2) During memory check, I pulled drive 0 out completely and drive 1 out a 1/2" and replaced drive 0 with the "source" DL380 drive 0.
3) When the system got to the controller initialization, it complained that drive 1 needed to be replaced to maintain "RAID 1 Redundancy". No keys to press.
4) I booted the system into single user, changed some network settings, and rebooted.
5) Came up fine and in a couple days I'll slide drive 1 back in and let it rebuild from drive 0.
Unix is boss.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
News and Events
Support
© Copyright 2024 Hewlett Packard Enterprise Development LP