new NAS

[vallor]

I've got all the disks in the new NAS, which is a Synology Diskstation
that runs Linux.

It has twelve 14TB disks, for 168T of total unformatted storage. This
will be used for two volumes: One RAID5 for permanent storage, and a
second RAID0 for temporary storage of video recordings.

If I can get the RAID0 volume fast enough, I might add an extra 10GB
link on the Synology side, add one to my workstation, and then gang
the ethernet connections on each side together for 20GBit connectivity.
Hopefully that will allow me to record 4K video at 60fps. (Currently,
I'm limited to HD video at 60fps.)

I won't be using NFS for the RAID0 volume -- choosing instead
to use the faster iSCSI.

[-hh]

Post by vallor
I've got all the disks in the new NAS, which is a Synology Diskstation
that runs Linux.

I've been fiddling with the notification settings on mine; seems that
Synology doesn't like having two NAS's under the same email address. If
that's really what the root cause is, its easy enough to remedy.

Post by vallor
It has twelve 14TB disks, for 168T of total unformatted storage. This
will be used for two volumes: One RAID5 for permanent storage, and a
second RAID0 for temporary storage of video recordings.

I'd probably reconsider the RAID0 based on my comment below..

Post by vallor
If I can get the RAID0 volume fast enough, I might add an extra 10GB
link on the Synology side, add one to my workstation, and then gang
the ethernet connections on each side together for 20GBit connectivity.

Ah, first time I read through this I was under the assumption that you
didn't have any 10GB link, so I was going to say to not bother with
RAID0 until you upgraded the Ethernet. This is my next step, which I'm
procrastinating on because I don't have any 10GbE switches yet.

In any event, what kind of I/O are you presently getting?

Post by vallor
Hopefully that will allow me to record 4K video at 60fps. (Currently,
I'm limited to HD video at 60fps.)

FWIW, I recently saw a weird-ish external HDD hybrid (2 bay?) that had
both USB-C and Ethernet connections. I'll try to find it again.

Post by vallor
I won't be using NFS for the RAID0 volume -- choosing instead
to use the faster iSCSI.

The Synology NAS's performance is reportedly helped a lot by increasing
the RAM...seen some critical comments that the minimum it ships with is
pretty low. I'm not sure how much above said minimum is merited; I've
pushed mine from 4GB to 32GB and its doing better.

Likewise, some models have slots to add NVMe cards for a disk cache
which should help performance too - - I'm using a pair of spare 2TBs
which is overkill, but I had them handy...I think the analyzer said that
it wanted just ~250GB? In any event, I'd expect the cache size needs to
increase once I upgrade the Ethernet connection.


-hh