- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- tape device
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
Forums
Discussions
Discussions
Discussions
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
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
05-15-2008 04:32 AM
05-15-2008 04:32 AM
tape device
tar -cvf /dev/rmt/1m (directories)
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
05-15-2008 04:38 AM
05-15-2008 04:38 AM
Re: tape device
The "25" is what you *might* get with maximum compression. The actual compression you achieve will be data-dependent.
To see if your tape drive uses the best compression available, do:
# lssf /dev/rmt/
You will probably see something like "best density available".
Regards!
...JRF...
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
05-15-2008 04:40 AM
05-15-2008 04:40 AM
Re: tape device
But it means all the times 12 GB native and 24 GB compressed with an ideal rate of 1:2.
If your data is not compressable that way and you get only - let's say 1:1.5 - you can store only 18GB on that tape.
If your data is already compressed and you get only 1:1 - you can only store 12 GB on the tape.
That's it.
Be aware of all the different device files of your tape!
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
05-15-2008 04:47 AM
05-15-2008 04:47 AM
Re: tape device
stape card instance 7 SCSI target 3 SCSI LUN 0 at&t best density available at ad
dress 1/0/8/0/0.3.0 /dev/rmt/1m
So this is telling me that the best device to use is 1m?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
05-15-2008 04:50 AM
05-15-2008 04:50 AM
Re: tape device
> So this is telling me that the best device to use is 1m?
In a manner of speaking, yes. It is saying that you will get the "best density available" when using this device. There may be other equally good devices are your server.
Regards!
...JRF...