I'd agree with Rick, T2000 is a cheap fast box, we have some talking to 4
LTO-2s without problem, unfortunately elsewhere we have v490s talking to
LT0-3s and they struggle to keep one at full speed thanks to the 490s
kneecapped bridge.
On Thu, 17 Apr 2008 18:00:10 +0200, Attila Mester <Attila.Mester AT SUN DOT
COM>
wrote:
>Hi Rick,
>if you are looking for a Sparc Solaris based System, the T2000 could be
>a good choice. The M 4000-5000 serie seems to be over sized for this and
>probably too expensive.
>I have seen benchmark numbers with the T2000 being an excellent "Data
>Pump". When you set up the server being also a storagenode with B2D
>caching in AFTDs, you can easily feed 4 LTO3 drives, assuming the disks
>can handle this load. The tests I know about were done with a 6-core 8GB
>RAM T2000.
>
>In the very informal testing we have run the T2000 can indeed run 4
>LTO-3 tape drives around
>120MB/sec/drive if the data resides on SAN (compressible data). If your
>data is highly compressible
>and on the network then you need to have the network bandwidth to push
>480MB/sec or so.
>The T2000 has only 4x 1GbE interfaces on board, this would be a limiting
>factor here.
>Six cores seemed more than adequate for CPU use! However if you are
>going to be using a lot of
>multiplexing then 8GB of memory may not be enough.
>If you need more than 300-400 MB/s network data collected from clients,
>you can consider the 10GbE
>card which gives you more throughput.
>
>The above test was made with NetBackup, but I´m confident, NetWorker
>would produce similar results.
>
>regards -attila
>
>********************************************************************
>Attila Mester 5 Digit Sun internal: x62534
>Data Protection Architect Tel: (+49 89) 46 008 2534
>Sun Microsystems GmbH Fax: (+49 89) 46 008 2583
>Sonnenallee 1 Mobil: +49 172 812 5947
>85551 Heimstetten / Germany mail: attila.mester AT sun DOT com
>********************************************************************
>
>
>
>
>rick pim schrieb:
>> our main networker server is a sun v490 (4x1500 MHz CPU, 32 GB)
>> direct-connected via fiber to 3 LTO-3 drives in an L8500 library.
>> our current tape footprint is probably in the 20-30 TB range
>> but we're expecting some growth.
>>
>> this server has more or less performed adequately, but it has two
>> limitations:
>>
>> - PCI bus only
>> - only two network interfaces
>>
>> we're in the position that a data center network redesign is going
>> to require at least three network interfaces, so we're going to replace
>> the server rather than just trying to wedge another network card into
>> an already-too-small-bus.
>>
>> we're a sun shop with almost exclusively sparc hardware so we'd like
>> to stick with that. with this constraint, two obvious upgrade paths
>> are:
>> - one of the coolthreads servers, t2000, t5220 or similar
>> - one of the other "midrange" servers -- sun's M series or equivalent
>>
>> does anyone have experiences, horror stories, warnings or
>> recommendations that they'd be willing to share?
>>
>> rp
>>
>> rick pim rick AT post.queensu DOT
>> ca
>> information technology services (613) 533-2242
>> queen's university, kingston
>> -----------------------------------------------------------------------
>> "Nine million terrorists in the world, and I gotta kill one with feet
>> smaller'n my sister."
>> -- Die Hard
>>
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>
>
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