Justin Aggus
Dabbler
- Joined
- Nov 11, 2016
- Messages
- 27
What I have now:
4U Supermicro 36 Bay X8DTL-3F
12x 8TB WD red
8x 6tb WD red
12x 3tb WD red
64GB ram
2x X5650 CPU's
Intel 10Gb/s lan card
This will be used mainly for backups (sequential write), with the occasional instant recovery (Random read). (OS will run from the NAS until recovery is finished)
I was about to order an expensive LSI Raid card when I remembered FreeNAS.
RAID10 FreeNAS should be able to max out a 10Gb/s Lan right? (Sequential write)
What about in RAIDZ2?
I know the rule of thumb for write speed is the slowest disk * the number of Vdevs
But I also know a real raid controller can do sequential writes in raid5/6 at close to (Number of Disks - 1)*(Speed of slowest disk)
I'm guessing this will come down to Sync vs Async writes?
This system is only used for backups, and the system will be in a proper datacenter (Meaning odds are this system will never see a power outage)
So I think Async writes should be fine.
I usually use SMB, but could switch to FTP or SFTP if it would be better.
4U Supermicro 36 Bay X8DTL-3F
12x 8TB WD red
8x 6tb WD red
12x 3tb WD red
64GB ram
2x X5650 CPU's
Intel 10Gb/s lan card
This will be used mainly for backups (sequential write), with the occasional instant recovery (Random read). (OS will run from the NAS until recovery is finished)
I was about to order an expensive LSI Raid card when I remembered FreeNAS.
RAID10 FreeNAS should be able to max out a 10Gb/s Lan right? (Sequential write)
What about in RAIDZ2?
I know the rule of thumb for write speed is the slowest disk * the number of Vdevs
But I also know a real raid controller can do sequential writes in raid5/6 at close to (Number of Disks - 1)*(Speed of slowest disk)
I'm guessing this will come down to Sync vs Async writes?
This system is only used for backups, and the system will be in a proper datacenter (Meaning odds are this system will never see a power outage)
So I think Async writes should be fine.
I usually use SMB, but could switch to FTP or SFTP if it would be better.
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