- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- Disk Enclosures
- >
- Re: XP-512 Business Copy
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
тАО11-08-2005 06:33 PM
тАО11-08-2005 06:33 PM
XP-512 Business Copy
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-08-2005 07:50 PM
тАО11-08-2005 07:50 PM
Re: XP-512 Business Copy
When creating volume pairs, data on the P-VOL is copied to the S-VOL to synchronize the volumes.
P-VOLs normally remain available to all hosts for read/write I/O, except during a reverse pair resync-restore operation.
Changes are copied from the S-VOL to the P-VOL during pair resync-restore.
S-VOLs become available for host write access only after the pair is suspended.
Read operations to the S-VOL are available except when reads are disabled with the paircreate command.
While the BC volume pair is suspended, all changes to the P-VOL and S-VOL are logged in a track-level bitmap.
Resync of the pair causes the S-VOL to be overwritten with the P-VOL version of any data that had been altered on either the P-VOL or S-VOL while the pair was suspended.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-08-2005 10:53 PM
тАО11-08-2005 10:53 PM
Re: XP-512 Business Copy
We got a XP 1024 and we make a Business copy of DB with another set of disks (S-VOL). When there is any data corruption in P-VOL we used to do the reverse resync (copying data from S-VOL to P-VOL). This does not do a fresh pair create. What it does is a resync, ie it will compare the data in S-VOL and will copy it to P-VOL.
So the answer to your problem is that, S-VOL to P-VOl copy does a delta copy not a full reverse sync.
Regards
CS
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-10-2005 01:38 AM
тАО11-10-2005 01:38 AM
Re: XP-512 Business Copy
In BC, when you do a reverse sync, it does not actually copy the data from S-VOL to P-VOL. It switches the bits so that the S-VOL becomes P-VOL and P-VOL becomes S-VOL. All it takes is about 2 Secs to accomplish this.
Let me know if anyone has any questions in this regard ?
Thanks,
Bhanu
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-10-2005 01:42 AM
тАО11-10-2005 01:42 AM
Re: XP-512 Business Copy
Good Luck!!
Bhanu
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-10-2005 09:30 PM
тАО11-10-2005 09:30 PM
Re: XP-512 Business Copy
As per the documentation it takes few seconds only when you reverse the roles of volumes from S-VOL to P-VOL. But when you do the reverse resync I think it should take time as per the delta differences between volumes.
#pairresync -g
This is used for reverse resync. Where in the differential data from SVOL is copied to PVOL(PVOL should be unmounted)
thanks & regards
Kishore Reddy
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-13-2005 05:32 PM
тАО11-13-2005 05:32 PM