- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: pvra and vgra
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
тАО06-22-2010 10:27 PM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-22-2010 10:43 PM
тАО06-22-2010 10:43 PM
SolutionPVRA, BDRA and VGRA
1. The PVRA is unique for every PV in the VG. It contains:
- LVMREC describing the PV with e.g. PV-ID, VG-ID, PV number in VG, PE size; start and length of: VGRA, BDRA (if any), BBDIR, User Data and the Bad Block Pool; in case of a ServiceGuard Cluster the Cluster ID and information about the Cluster Lock Area.
- BBDIR (Bad Block Directory, maintaining the Bad Block Pool).
2. The BDRA (only created with pvcreate ├в B) contains boot relevant information, e.g.:
- Information about PVs in root VG
- Information about Boot/Swap/Root LVs (major/minor numbers, etc.)
3. The VGRA is identical for any PV of the VG. It contains:
- The VGDA describing the VG, with e.g.:
= VG-ID, configured max_lv, max_pv, max_pe.
= per LV information: LV flags, size, schedule strategy, number of mirrors, stripes, stripe size, etc.
= per PV information: PV-ID, PV size, PV flags, Extent mapping, etc.
- The VGSA containing information about missing PVs and stale extents.
= The MCRs for Mirror Write Cache handling.
mikap
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-23-2010 04:17 PM
тАО06-23-2010 04:17 PM
Re: pvra and vgra
VGRA contains the information about the volume group. What logical volumes are on this disk and what pieces of logical volumes are on the disk.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-23-2010 07:47 PM
тАО06-23-2010 07:47 PM
Re: pvra and vgra
VGRA -> Volume Group Reserved Area
PVRA -> Physical Volume Reserved Area
Check the following link for more details -
http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1277351005548+28353475&threadId=117217
For indepth details about VGRA/PVRA, refer -
http://books.google.co.in/books?id=SsH-qdTx9pUC&pg=PA293&lpg=PA293&dq=vgra+pvra&source=bl&ots=SAVZ2FOgGp&sig=QLctrWZ2ET2Wj6SEXnJbc0lJbuI&hl=en&ei=N9QiTNqZJ9vsnQfA8rkm&sa=X&oi=book_result&ct=result&resnum=3&ved=0CCAQ6AEwAjgK#v=onepage&q=vgra%20pvra&f=false
->Chapter 11: Page 292: Disk-Resident Data Structures
Hope this helps.
Regards,
Murali
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-23-2010 09:15 PM
тАО06-23-2010 09:15 PM
Re: pvra and vgra
in very simple terms.
The physical volume reserved area (PVRA) contains information describing the physical volume, such as its unique identifier, physical extent information, and pointers to other LVM structures on the disk.
The volume group reserved area (VGRA) describes the volume group to which the disk belongs. The information is replicated on all of the physical volumes and updated whenever a configuration change is made.
BR,
Kapil+
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-24-2010 12:52 AM
тАО06-24-2010 12:52 AM
Re: pvra and vgra
Check the below link:
http://docs.hp.com/en/5992-6576/ch01s06.html#v1446481
Rgds-Kranti