Itamar Croitoru
Dabbler
- Joined
- Feb 2, 2017
- Messages
- 42
Hello,
Here's my current setup:
Server: Dell PowerEdge R310
CPU: Intel(R) Xeon(R) CPU X3440 @ 2.53GHz
RAM: 48 GB ECC 1333
Boot drive: 60 GB Commercial SATA SSD
FreeNAS: Latest production 9.10
Storage Controller: HP rebrand of LSI 9207-8E flashed with IT build
Storage Array: Compelent 24 bay SAS array DAS
Drives: 14 x 146 GB 15,000 RPM SAS drives
zpool: 1 x RAID 10
Shared as iSCSI through 2 x Dell PowerConnect 6248 stacked switches
Used as Datastores for 2 x VMware ESXi 5.5 Update 3e
I'm currently seeing pretty good performance with the above setup. Don't get me wrong, it took a lot of work, research and testing to get it working, but I'm considering performance upgrades.
My question:
After finding some good articles, it seems that for my usage case above, a 120 GB SSD in the storage array acting as L2ARC can sometimes be a performance boost and put simply I'm asking if that's the case.
Figuring it's based on my currently ARC status, here are the stats I can think now to provide:
ARC Size: 25.6 GB Avg 37.6 GB Last
ARC Hit Ratio: 53.4% Avg 53.4% Last
From what I've read, I think it may be a performance improvement to spend on the SSD for L2ARC but I'm looking for confirmation.
Can you tell from the above?
Do you need other info?
What do you think?
* I am not seeing performance problems but I do have some budget to improve the storage now, so why not invest before it's an issue?
Thanks
Here's my current setup:
Server: Dell PowerEdge R310
CPU: Intel(R) Xeon(R) CPU X3440 @ 2.53GHz
RAM: 48 GB ECC 1333
Boot drive: 60 GB Commercial SATA SSD
FreeNAS: Latest production 9.10
Storage Controller: HP rebrand of LSI 9207-8E flashed with IT build
Storage Array: Compelent 24 bay SAS array DAS
Drives: 14 x 146 GB 15,000 RPM SAS drives
zpool: 1 x RAID 10
Shared as iSCSI through 2 x Dell PowerConnect 6248 stacked switches
Used as Datastores for 2 x VMware ESXi 5.5 Update 3e
I'm currently seeing pretty good performance with the above setup. Don't get me wrong, it took a lot of work, research and testing to get it working, but I'm considering performance upgrades.
My question:
After finding some good articles, it seems that for my usage case above, a 120 GB SSD in the storage array acting as L2ARC can sometimes be a performance boost and put simply I'm asking if that's the case.
Figuring it's based on my currently ARC status, here are the stats I can think now to provide:
ARC Size: 25.6 GB Avg 37.6 GB Last
ARC Hit Ratio: 53.4% Avg 53.4% Last
From what I've read, I think it may be a performance improvement to spend on the SSD for L2ARC but I'm looking for confirmation.
Can you tell from the above?
Do you need other info?
What do you think?
* I am not seeing performance problems but I do have some budget to improve the storage now, so why not invest before it's an issue?
Thanks