- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - OpenVMS
- >
- Re: OpenVMS BACKUP saveset max size ?
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
тАО11-20-2006 10:29 PM
тАО11-20-2006 10:29 PM
what is the max size of a saveset file under
v7.3-2 (and v8.3) ? Can I do a "backup/image"
operation on a 400GB disk ?
Thanks in advance !
br, peterfra
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-20-2006 10:35 PM
тАО11-20-2006 10:35 PM
Re: OpenVMS BACKUP saveset max size ?
br, peterfra
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-20-2006 10:44 PM
тАО11-20-2006 10:44 PM
Re: OpenVMS BACKUP saveset max size ?
welcome to the OpenVMS ITRC forum.
Backup saveset files are sequential files and are limited by the OpenVMS maximum volume size, which is currently 1 TB.
Of course you can do a BACKUP/IMAGE of a 400 GB disk. You need to provide enough disk space (or tapes) for storing the saveset.
Volker.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-22-2006 06:50 AM
тАО11-22-2006 06:50 AM
Re: OpenVMS BACKUP saveset max size ?
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-22-2006 08:32 AM
тАО11-22-2006 08:32 AM
SolutionA limitation may come in from the EOF1 ANSI label. The number of blocks for a file is stored in the EOF1 label in a 6 digit ASCII string. This allows only for a maximum file of 62 GB (999999 * 63.5KB). The current BACKUP code calls $FAO to produce this string using a control string of '!6ZL'. A block count > 999999 is then returned as a string of '******' which makes it an illegal ANSI block. I haven't tested it but the BACKUP code seems to ignore this when reading the save set back. If true, your save set on tape could be larger than 62GB and even larger than 1TB.
/Guenther
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-22-2006 05:48 PM
тАО11-22-2006 05:48 PM
Re: OpenVMS BACKUP saveset max size ?
based on the question 'what is the max size of a saveset file', I have answered the question under the assumption, that the destination of the saveset was a 'file on disk' and I refered the 'volume size limit'. This limitation does not apply to BACKUP savesets on tape.
For a discussion of the tape block count in EOF1/EOV1 ANSI tape labels, please refer to the following recent notes entry 1429 in the DECUServe VMS notes file:
http://eisner.decus.org/DECUServe/DECnotes/VMS/1429/SDIR.HTML
Luckily, BACKUP does not seem to care about the Block Count field in the EOF1 trailer record, but DIRECTORY/SIZE will get confused.
Volker.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-23-2006 11:45 PM
тАО11-23-2006 11:45 PM
Re: OpenVMS BACKUP saveset max size ?
So it is possible to retrieve the contents of a "large" saveset, even if the block Count field in the EOF1 field is incorrect ?
br,
peter
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-24-2006 03:52 AM
тАО11-24-2006 03:52 AM
Re: OpenVMS BACKUP saveset max size ?
the invalid block count field in the EOF1 trailer may make the backup saveset on tape an 'invalid' ANSI file on tape, but for the purpose of BACKUP restoring that saveset, this field is not being looked at.
Volker.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-29-2006 05:47 PM
тАО11-29-2006 05:47 PM