>>> They will support servers using ext4 for file storage. (But not for client backups yet).
Huh? What do you mean by "client backups"? Do you mean as in file device class? We did not realize the filesystem type would be such an issue. We just built 2-systems using SAN storage and were wondering why one took almost 2x-longer wallclock time to format the storage volumes than the other. The person who installed the OS realize the "slow" system was ext2 while the "faster one" is ext4 so he reformatted the "slow" one to be ext4. Originally I had planned to use the SAN space as file dev class but have switched to 200GB formatted volumes (for 5TB space). However, we have noticed the system that was originally ext2, is generating these strange errors when formatting the SAN space, that we have not been able to identify nor resolve. If anyone else has seen these or can offer some suggestions, it would be greatly appreciated! Oct 29 10:56:23 moon kernel: qla2xxx 0000:83:00.0: scsi(7:0:0): Abort command issued -- 1 9e1649 2002. Oct 29 11:42:57 moon kernel: qla2xxx 0000:83:00.0: scsi(7:0:0): Abort command issued -- 1 a2cdc8 2002. Zoltan Forray TSM Software & Hardware Administrator Virginia Commonwealth University UCC/Office of Technology Services [email protected] - 804-828-4807 Don't be a phishing victim - VCU and other reputable organizations will never use email to request that you reply with your password, social security number or confidential personal information. For more details visit http://infosecurity.vcu.edu/phishing.html From: "Colwell, William F." <[email protected]> To: [email protected] Date: 10/28/2010 04:08 PM Subject: [ADSM-L] Linux ext4 filesystems - is anyone using them for devt=file storage? Sent by: "ADSM: Dist Stor Manager" <[email protected]> Hi, I am running 2 6.1 servers on rhel 5.5. I am doing a lot of doing dedup. All primary storagepools are devicetype file. Current I have 10 16TB ext3 filesystems on raid 6 Sata. All volumes are scratch allocations. I have another 96TB ready to go. I haven't made the filesystems yet. So my question is if anyone is using ext4 yet as the filesystem type for TSM storagepools. >From my initial reading, I think the extent allocation feature would be very useful. See http://en.wikipedia.org/wiki/Ext4 I opened a pmr today to ask if IBM would support servers using ext4, and they just called back! They will support servers using ext4 for file storage. (But not for client backups yet). Also, is anyone using ext4 for the database? Thanks, Bill Colwell Draper Lab
