On Sun, Dec 12, 2010 at 8:34 AM, Nico Kadel-Garcia <nkadel@xxxxxxxxx> wrote:
> On Sat, Dec 11, 2010 at 12:24 PM, Rainer Duffner <rainer@xxxxxxxxxxxxxxx> wrote:
>
>> The other question is if it actually works.
>> Too many of the low-cost devices eat the data on the drives, when the
>> motherboard or the controller fries...
>> With luck, you can read the data on one of the drives...
>>
>> If the client only needs 12TB, there's shurely a NetApp that is
>> cheaper but only scales to 10 or 20TB.
>> If the client has maxed that out and needs to go beyond that, he needs
>> to buy a bigger filer-head + shelves and migrate his data (AFAIK,
>> that's possible, at a charge...).
>
> NetApps are wonderful. So is a Hercules transport. Amazing pieces of
> engineering, completely unsuitable for home use due to expense of
> underlying hardware and excessive sophistication of high availability
> components which, in a modest environment, is more easily done with
> rsnapshot and a few of the cheapest drives.
NetAPP's are far too overpriced for our needs. I need something more
affordable.
>
> 12 TB, well, there you're getting into noticeable storage. What are
> your requirements? High availability? On-line snapshots? Encryption?
> Do you need that 12 TB all as one array, or can it be gracefully split
> into 3 or 4 smaller chunks to provide redundance and upgrade paths, or
> put different data on different filesystems for different
> requirements?
In one instance we need to host virtual machines, so we don't need
anything fancy. I'm happy with running iSCSI / NFS and even AOE.
Currently we have a few 2U SuperMicro servers with 24bays, running
OpenFiler. But, OpenFiler is outdated and limited when it comes to
scalability. Ideally, I would like to have a "single host" type setup,
for when we move a client to a larger / new / different array, he
still connects to the same host - i.e. for high availability.
For a different setup, one of our clients needs to store archived
video footage of their CCTV system, which currently generates about
1TB's worth of data in one day. NetApp devices is simply off the scale
when it comes to afford-ability in this case. What-ever we decide to
go with needs to be cheap enough so that we can have 2x the setup for
backup purposes.
>
>> You might want to try to get a quote from Oracle for a Unified Storage
>> Appliance 7320 and compare it with one of NetApps entry-level offerings.
>>
>> With 100TB, DIY is out of the question ;-)
>
> IBM sells some nice one rack units as well. All of them play nicely
> with CentOS, but you need to think about the actual connecton. GigE
> and NFS, which works surprisingly well? Sophisticated permissions with
> Samba 3.6, NFSv4 and NTFS compatibility with a NetApp QTree? Or just a
> big honking array to store all the porn and Bittorrent movies to brag
> about?
>
>> BTW: what does the client do with the disk-space? What's the access-
>> pattern?
>
> Indeed. Details! Details matter!
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--
Kind Regards
Rudi Ahlers
SoftDux
Website: http://www.SoftDux.com
Technical Blog: http://Blog.SoftDux.com
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Cell: 082 554 7532
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