- Community Home
- >
- Servers and Operating Systems
- >
- Legacy
- >
- Operating System - Tru64 Unix
- >
- Poor Performance on ES40 when using tar restore
Categories
Company
Local Language
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
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
Community
Resources
Forums
Blogs
- 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
тАО10-30-2003 01:13 AM
тАО10-30-2003 01:13 AM
Poor Performance on ES40 when using tar restore
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-30-2003 11:30 AM
тАО10-30-2003 11:30 AM
Re: Poor Performance on ES40 when using tar restore
- What version and patch level is installed on the system ?
I'm aware of an older problem under 4.0d-f that was fixed after PK2, where up to PK8 for v4.0f. You'd see allot of ss_perform_timeouts in the error log.
Maybe look at the binary.errlog to see if anything is being reported during the slowdown time. Maybe SCSI errors causing interrupts beating on the system. If you see "lid's do not match" errors on V5 you may need to cleanup rogue tape devices in the hardware database - I've seen that impact Legato performance.
- What's your tar command? what options used for the restore?
- Was the data in the tar archive written by this system? Or are you exchanging data from another platform/system?
- Watch the process with "ps" and see if it's consuming the system - %CPU, VSZ & RSS, and maybe use vmstat to see what modes the system is in during this time sys, user, int. You may need to renice your login process to watch these things.
Let us know.
Dave Bechtold
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-30-2003 06:38 PM
тАО10-30-2003 06:38 PM
Re: Poor Performance on ES40 when using tar restore
During restore, (tape -> non-system disk), in a several minites, I start seeing traffic on system disk.
System disk havily loaded -> poor responce time.
Try to monitor it with iostat.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-30-2003 10:28 PM
тАО10-30-2003 10:28 PM
Re: Poor Performance on ES40 when using tar restore
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-31-2003 09:37 AM
тАО10-31-2003 09:37 AM
Re: Poor Performance on ES40 when using tar restore
You may want to see if you can further isolate this by restoring a tar archive that is on another disk/filesystem to the target filesystem to see if it behaves similarly. To see if it's specific to reading the archive from the tape device.
Also, if the target file system is AdvFS, take a look at the fragementation of that domwin the file system sits on.
# defragment -nv {domain}
Then check the Aggregate I/O perf: - if it's 60% or below - consider deframenting the domain. If your on v5.1B check out vfast feature.
Dave Bechtold