what is the best raid-10 host adapter / motherboard or to use with Debian/Stable and SAS drives?
We need to purchase 2 HA's for our new drbd set up.
We need to purchase 2 HA's for our new drbd set up.
reliable raid 10 set up
- Thread starter RobFantini
- Start date
Thanks for the answers so far.
We've use supermicro custom systems.for 10+ years.
For a long time we've uses 3ware cards, and are having troubles with 9750-8i cards. I tried to use 8 ssd drives [ Samsung 820 ssd's] . We always check hardware compatability lists at drive manufacturer and lsi. And we try to keep firmware up to date.
the ssd array kept failing. drives randomly reset.
so we got a new chassis and tried with sas drives.
and yesterday got a lot of these emails from the card:
So we'll replace the drive today and see if the issue was a bad drive.
If the issues persist we'll try a different host adapter.
We've use supermicro custom systems.for 10+ years.
For a long time we've uses 3ware cards, and are having troubles with 9750-8i cards. I tried to use 8 ssd drives [ Samsung 820 ssd's] . We always check hardware compatability lists at drive manufacturer and lsi. And we try to keep firmware up to date.
the ssd array kept failing. drives randomly reset.
so we got a new chassis and tried with sas drives.
and yesterday got a lot of these emails from the card:
Code:
Aug 10, 2013 01:46:30PM - Controller 0
ERROR - Drive power on reset detected: phy=5So we'll replace the drive today and see if the issue was a bad drive.
If the issues persist we'll try a different host adapter.
Just checked the Dell site, the PowerEdge R720's look like great units. [ R710'a are discontinued].
Do you use drbd ? If not how do you accomplish high availability storage?
thanks.
Do you use drbd ? If not how do you accomplish high availability storage?
thanks.
Last edited:
We ordered 2 R720's . Will try to use our 3ware 9750-8i raid cards and Melonix IB
Thanks for the R710 suggestion.
Thanks for the R710 suggestion.
If your supermicro is a storage system I would recommend plain HBA's like Dell sas 6/iR (rebranded LSI) using a striped raid10 zfs pool. See benchmark for zfs compared with raid controller (HP smart array 5i). http://www.krenger.ch/blog/zfs-vs-hardware-raid-raid-10/
Mir - thank you for the response.
Yes the supermicro will be for storage. I use zfsforlinux on pve at home and it is very very reliable. For home theater and running kvm's it is excellent . But there are just 4-5 users maximum.
Do you use zfs for shared storage?
If so which operating system do you suggest?
Yes, I use ZFS for shared storage. I have even develop a storage plugin for proxmox, which I hope will be included sometime in the future. My plugin use native zfs commands on the storage through ssh so the plugin therefore enables snapshots (native zfs) and cloning and templates which enables both full and linked clones.
Operating system is Omnios and for gui administrative interface I use napp-it.
Operating system is Omnios and for gui administrative interface I use napp-it.
Omnios Bloody has just been upgraded to 150007 today which means support for SATA3, AMD 75 chipset, and Intel Sandy bridge
I can recommend this presentation by Theo from Usenix where he talks about the motivation and design behind Omnios. https://www.usenix.org/conference/lisa12/omnios-motivation-and-design
BTW Dell R720 are great but they suffer from performance problems with current pve kernels (see there http://forum.proxmox.com/threads/14800-pve-(host)-vs-ubuntu-performance).
just saying ...
just saying ...
Our goal it to get drbd primary/primary working between the 2 systems. We are more interested in high availability then speed.
Hopefully the kernel gets better drivers / firmware to deal with the issues.
For people interesting in ZFS, ZFS RAID, and performance I can recommend this extensive blog:
https://calomel.org/zfs_raid_speed_capacity.html
https://calomel.org/zfs_raid_speed_capacity.html