Background
I am trying to host all my Lightroom catalogue and RAW photos on a NAS so I can share it between computers. The problem is Lightroom is designed to run with the files on local disk because the pictures are quite large at around 25GB per photo so you can imagine how long it'd take to load an album full of photos. People have done it by hosting everything on a NAS as shown on fstopper.
Requirement
I want to upgrade my NAS to one that can provide a sustained read of 10Gbps with RAID6 or RAIDZ-2.
Questions
Thanks.
I am trying to host all my Lightroom catalogue and RAW photos on a NAS so I can share it between computers. The problem is Lightroom is designed to run with the files on local disk because the pictures are quite large at around 25GB per photo so you can imagine how long it'd take to load an album full of photos. People have done it by hosting everything on a NAS as shown on fstopper.
Requirement
I want to upgrade my NAS to one that can provide a sustained read of 10Gbps with RAID6 or RAIDZ-2.
Questions
- Must I use a 12 disk setup in order to achieve 10Gbps? Per the benchmark available on calomel.org I can see the the following.
4 disks: r=183MB/s
6 disks: r=488MB/s
12 disks: r=1065MB/s - Would I not be better off running RAID1 which provides improved read performance and dual disk failure redundancy? For example the same link above shows 3 disks in RAID1 provides r=589MB/s which already exceeds 6 disks setup in RAIDZ-2. So perhaps I can achieve the same performance with only 6 disks? Somehow the thought of buying 6 disks is cheaper than buying 12 disks and I can fit 6 disks on a 1U server whereas 12 disks requires a 2U server.
- I know calomel.org says I need to use 12 disks to achieve 10Gbps with RAIDZ-2 but this requires a 2U server to host all these disks. I'd much rather get a way with something like a Thinksystem SR250 (4 x LFF or 10 x SFF) or a ProLiant DL20 G10 (2 x LFF or 6 x SFF). Is it possible to achieve 10Gbps with RAIDZ-2 on these smaller 1U servers which have a limit on the number of disks.
Thanks.