Can my LSI SAS 1078 RAID Controller operate with the new generation SSHDs?

Mr Davo

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Feb 22, 2010
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Hi Everyone,

I have a HP ProLiant DL580 G5 at my disposal which I am considering deploying as a backup Server. My intention is to replicate my live Server to the DL580 using VEEAM Replication.

The DL580 appears to be in good working order, however I need to update the hard drives in the Server. In a bid to save some money (and with the knowledge that this backup Server will not be deployed for much more than 12 months) I am considering putting standard 2.5" drives into the Server rather than 10K SAS drives.

The DL580 utilizes an LSI SAS 1078 chipset RAID controller which I plan on connecting 8 hard drives to and configuring a RAID 10 array on.

My question is can this controller operate with the new SSHD Hybrid Drives which are available, such as the one linked below?

Western Digital WD Blue 1TB SSHD WD10J31X

I understand that TRIM support is required on dedicated Solid State Drives, and that Intel only introduced RAID0 support with TRIM from 7-Series Motherboards onwards.

Do SSHDs require TRIM support, and if so can my RAID controller provide the required TRIM functionality?

Any responses will be greatly appreciated.

Kind Regards,

Davo
 
Solution
No you do not require TRIM support for SSHD's.

Why?

the SSD part on SSHD's you have NO access to what so ever. It is just a large Cashe. its not like it shows up as the Hard drive and then the SSD part as two different drives. You have no control over what it puts on the SSD cashe part either since it puts what ever the top 8Gb of most access files on.

Honestly in your position i would just get some WD Blacks or Reds for your RAID and just dump the whole SSHD option all together since you will most likely see little to no performance benifit to getting them and since they aren't designed for RAID enviroments they have the possibilty of dropping out of the RAID due to timing out.

If you EVER do RAID get hard drives DESIGNED FOR...
No you do not require TRIM support for SSHD's.

Why?

the SSD part on SSHD's you have NO access to what so ever. It is just a large Cashe. its not like it shows up as the Hard drive and then the SSD part as two different drives. You have no control over what it puts on the SSD cashe part either since it puts what ever the top 8Gb of most access files on.

Honestly in your position i would just get some WD Blacks or Reds for your RAID and just dump the whole SSHD option all together since you will most likely see little to no performance benifit to getting them and since they aren't designed for RAID enviroments they have the possibilty of dropping out of the RAID due to timing out.

If you EVER do RAID get hard drives DESIGNED FOR RAID. So either Spend the extra cash and get SAS Drives (Don't have to be 10K drives) or get WD Reds for best results. WD Blacks would be OK but Reds are better since they are Designed for NAS/RAID enviroments.
 
Solution