- Community Home
- >
- Servers and Operating Systems
- >
- HPE ProLiant
- >
- ProLiant Servers (ML,DL,SL)
- >
- HP 420i RAID raid level transform
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
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
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
03-04-2013 01:57 AM
03-04-2013 01:57 AM
HP 420i RAID raid level transform
Hi,
I have HP DL360p Gen8 8 with internal 420i controler and FBWC + battery. ACU says that raid level is 1+0. But in details of the controler i've found:
Mirror Group 0: physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 500 GB, OK) physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 500 GB, OK) physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 500 GB, OK) Mirror Group 1: physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 500 GB, OK) physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS, 500 GB, OK) physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS, 500 GB, OK) Drive Type: Data
which is raid 0+1 level. Is there any option to transform this RAID to level 1+0 without data lose? Offline or online - it doesn't matter.
- Tags:
- RAID
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
03-13-2013 07:50 AM
03-13-2013 07:50 AM
Re: HP 420i RAID raid level transform
hi
all smart controllers use raid 1+0. sometimes someone (even in hp documents) calls it raid 0+1 which is not correct.
smart controllers have never used 0+1.
if you have a test server you can prove this easily.
if you got 6 drives 1 is mirrored to 4, 2 to 5 and 3 to 6.
if it was 0+1 and removing the disks 1 and 5 you would have no data anymore, because both
raid 0 sets would have broken.
however, as disk 5 is not the mirror of disk 1, your data are still alive.
i have done this several times to prove this to my students.
so enjoy your 0+1 because it is actually a raid 1+0.
you just misinterpreted the information from acu.
best regards
ernesto (germany)