Linked Questions

75
votes
6answers
13k views

Why is Enterprise Storage so expensive?

This is a Canonical Question about the Cost of Enterprise Storage. See also the following question: What's the best way to explain storage issues to developers and other users ...
40
votes
4answers
15k views

How exactly & specifically does layer 3 LACP destination address hashing work?

Based on an earlier question over a year ago (Multiplexed 1 Gbps Ethernet?), I went off and setup a new rack with a new ISP with LACP links all over the place. We need this because we have individual ...
12
votes
7answers
677 views

How do storage IOPS change in response to disk capacity?

All other things being equal, how would a storage array's IOPS performance change if one used larger disks. For example, take an array with 10 X 100GB disks. Measure IOPS for sequential 256kb block ...
5
votes
3answers
13k views

SAS vs Near-line SAS vs SATA

I'm unsure about the differences in these storage interfaces. My Dell servers all have SAS RAID controllers in them and they seem to be cross-compatible to an extent. The Ultra-320 SCSI RAID ...
14
votes
6answers
2k views

Is the F.U.D. about ext4 justified? Or would it be safe to use in some production systems?

I am wondering if ext4 is safe to use on my servers. But I've heard so much FUD about it that I am concerned. Our system could lose some data, and it would not be too big a deal. Even a full days ...
10
votes
7answers
919 views

10 gigabit networks: Decieding between fiber and twisted pair

With a green field installation 10gbps network (no legacy equipment to support), why would one select one physical medium over the other? If left to impulse, I'd probably go with fiber optics over ...
6
votes
5answers
8k views

SAS or SATA for 3 TB drives?

We are looking to purchase new 3 TB enterprise-grade drives and can buy either SAS or SATA models. AFAIK, SAS generally gives better performance than SATA, but searching for benchmarks I found ...
10
votes
4answers
2k views

Any experience with SATA SAS Interposer Cards?

Driven by the current price difference between SATA and SAS disks on one side and the potentially bad behaviour of SATA disks in bigger storage arrays on the other side, I have found so-called ...
6
votes
1answer
5k views

How exactly does a SAS SFF-8087 breakout cable work? + RAID/connection questions

Please let me know if my question does not makes any sense as I am not sure if I am interpreting it correctly from my thoughts due to my lack of technical knowledge on this. If I am using a ...
9
votes
2answers
601 views

Are consumer class hard disks okay for zfs?

I just recently bought a new server an HP DL380 G6. I replaced the stock smart array p410 controller with an LSI 9211-8i. My plan is use ZFS as the underlying storage for XEN which will run on the ...
5
votes
3answers
1k views

Multiplexed 1 Gbps Ethernet?

Is it possible to multiplex two (or more) 1Gbps Ethernet into a single logical connection? Is it common place? Advisable? Stupid? Other considerations? I ask because my hosting partner's network ...
1
vote
3answers
2k views

Using SATA drives with SAS shared backplane?

Is it possible to use SATA drives when you have a SAS shared backplane to be able to address the drives?
2
votes
2answers
448 views

Are SAS Drives really worth their money and are they much better than todays latest SATA?

The price difference between SATA and SAS is really very big. Of course I understood, that SAS drives have their advantages, but does this really legitimate a price difference of 100% or more? Should ...
2
votes
1answer
813 views

HP MDS 600 compatibility questions

I've bought a used HP MDS 600 to use as JBOD to a ZFS filesystem. Originally I just assumed that it was a pretty 'dumb' box and I'd be able to use a SAS card like the 16-port LSI one, and most any ...
1
vote
4answers
559 views

Do 1 TB Velociraptor SATA drives work smoothly in a Dell PowerEdge RAID setup? [closed]

We're looking at using velociraptor 10k SATA drives in a Dell Poweredge R720. The late-2012 1 TB WD velociraptors seem like a great fit for our situation (need 10s of TBs of storage in a 2.5" format ...

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