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Old 14th November 2013
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Oko Oko is offline
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Default File server hardware recommendation

My small LAB is looking to acquire two file servers in the very near
future. I am not much of a storage guy so I am soliciting opinion from
this community. The new file servers are likely to be running
DragonFly BSD for obvious reason (Hammer).

One file server should be about 20TB and used by a group of about 20-30
users. Another should be about 10-12 TB with no more than 10 users.
Following earlier advises I am thinking of setting up hardware RAID
based on one of LSI devices. We are in data mining business so moving
large amounts of data in particular via NFS is must for us.

Are there any strong opinions? I was browsing little bit Newegg and I
see bunch of inexpensive Synology and Buffalo network storage systems. I
have mostly experience with Supermicro. Is there a significant
difference in the quality between those manufacturers?

I know that there are some serious data storage people lurking here so please help.
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Old 17th November 2013
J65nko J65nko is offline
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Default

The only person I know here that deals with "serious data storage" is Phoenix, but he hasn't been around here for quite a while. In his school district they use Supermicro storage systems.

RAID

https://en.wikipedia.org/wiki/RAID#R...e_environments recommends use of RAID6 or RAID10 for larger arrays.
According to https://en.wikipedia.org/wiki/RAID-Z#RAID-Z the ZFS equivalents for this are:
Quote:
RAID-Z2 doubles the parity structure to achieve results similar to RAID 6: the ability to sustain up to two drive failures without losing data.[11] In July 2009, triple-parity RAID-Z3 was added to provide increased redundancy due to the extended resilver times of multi-terabyte disks
Having only played with ZFS for a few months, I don't know if Hammer has features to deal with the long resilver times of large arrays.
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