- Community Home
- >
- Servers and Operating Systems
- >
- Legacy
- >
- Operating System - Tru64 Unix
- >
- Re: backup with DLTIV on TZ88 fails
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
тАО09-30-2004 10:33 PM
тАО09-30-2004 10:33 PM
backup with DLTIV on TZ88 fails
I have the problem that the vdump seems to be ok but the vrestore -tv aborts on different tapes roughly at the same location.
Are there any known compatibility problems?
According to man tape the TZ88 should be able to handle DLTIV.
thanks for any insight,
Michael
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-01-2004 03:45 PM
тАО10-01-2004 03:45 PM
Re: backup with DLTIV on TZ88 fails
What are you trying to do exactly?
What is the size of the data ?
If the backups run ok, then reading from the tape while restoring should be OK.
You are using vrestore -tv , are you just trying to see files on the save set or want to restore them?
Mohamed
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-02-2004 02:45 AM
тАО10-02-2004 02:45 AM
Re: backup with DLTIV on TZ88 fails
thanks for your answer. I just want to check the quality of the backup after vdump not to restore it. At the moment it is starting to look like that the tapes are losing their capacity. I tried with a new and that worked. We will exchange the rest too. I wonder however that the write did not fail.
thanks,
Michael
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-02-2004 05:17 AM
тАО10-02-2004 05:17 AM
Re: backup with DLTIV on TZ88 fails
It seems that the compression through the tape drive or through the system command is better when backing up oracle files. I can backup 100GB of oracle data file to a DLTIV, while I can just backup about 60GB of flat files onto the same tape.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-02-2004 12:53 PM
тАО10-02-2004 12:53 PM
Re: backup with DLTIV on TZ88 fails
Michael
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-03-2004 05:19 AM
тАО10-03-2004 05:19 AM
Re: backup with DLTIV on TZ88 fails
Another reason for loosing space is when the tape quality goes down when the tape drive starts to re-write blocks.
But it is strange that you can write to the tape media, but apparently cannot fully read it. Is there anything helpful in the error log?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-03-2004 09:05 AM
тАО10-03-2004 09:05 AM
Re: backup with DLTIV on TZ88 fails
I find it funny that Oracle sneeked in here because it never was an issue. The main question is that the write does not cause an error but the read. I will have a look into the binary errorlog for errors.
Nice performace! If I don't pay attention you will pass me on my way to the dunes.
thanks,
Michael
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-03-2004 06:28 PM
тАО10-03-2004 06:28 PM
Re: backup with DLTIV on TZ88 fails
And thank you for the compliments. Have no fear - you're way ahead of me.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-04-2004 01:29 AM
тАО10-04-2004 01:29 AM
Re: backup with DLTIV on TZ88 fails
Are You trying to read tape by another streamer?
Can You read it with the original streamer?
If the TZ88 also known as SDLT (or Super DLT?)
I've got an experience with SDLT 320 (native 160, compressed 320GB) - it is capable of reading DLT IV (35 / 70 GB) tapes. It does working.
You can try vdump -x option (XOR checksm block, kind of RAID5 technology).
If there anything in binary.errlog?
There is tape exerciser /usr/field/tapex
- Your can try the tool to write & verify data. There tool has the "transportability" test - write on one streames, read on another.
Takes ages to fill up the whole tape :-(.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-04-2004 05:23 AM
тАО10-04-2004 05:23 AM