Extend RAID 1 (HP SmartArray P410i) running Linux
- by Oliver
I took over a fairly simple server setup with the following RAID 1 config running Ubuntu 11.10 (Kernel 3.0.0-12-server x86_64):
=> ctrl all show config
Smart Array P410i in Slot 0 (Embedded) (sn: removed)
array A (SAS, Unused Space: 1335535 MB)
logicaldrive 1 (279.4 GB, RAID 1, OK)
physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 1 TB, OK)
physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 1 TB, OK)
Initially there were two 300GB disks that got replaced by 1TB disks and I now have to extend the logical volume to use that extra space.
However, when trying to do so I get the following warning:
=> ctrl slot=0 ld 1 modify size=max
Warning: Extension may not be supported on certain operating systems.
Performing extension on these operating systems can cause data to
become inaccessible. See ACU documentation for details. Continue?
(y/n)
Is it safe to say yes or am I at risk of corrupting the file system / loosing data? Rearranging and extending the file system afterwards shouldn't be an issue as I can take the server offline and boot from a gparted live disk.
Here's the config of the RAID controller in use:
=> ctrl all show detail
Smart Array P410i in Slot 0 (Embedded)
Bus Interface: PCI
Slot: 0
Serial Number: removed
RAID 6 (ADG) Status: Disabled
Controller Status: OK
Hardware Revision: Rev C
Firmware Version: 5.12
Rebuild Priority: Medium
Expand Priority: Medium
Surface Scan Delay: 15 secs
Surface Scan Mode: Idle
Wait for Cache Room: Disabled
Surface Analysis Inconsistency Notification: Disabled
Post Prompt Timeout: 0 secs
Cache Board Present: False
Drive Write Cache: Disabled
SATA NCQ Supported: True
And the partition table:
Number Start End Size Type File system Flags
1 1049kB 274GB 274GB primary ext4 boot
2 274GB 300GB 25.8GB extended
5 274GB 300GB 25.8GB logical linux-swap(v1)
