topic Data transfer rate in Disk Enclosures

Data transfer rate

Utpal Krishna — Wed, 15 Oct 2003 03:33:59 GMT

Hi

Can any one tellme the Data transfer rate of
EVA 5000 and VA 7400?

Thanks

Utpal

Re: Data transfer rate

Jean-Luc Oudart — Wed, 15 Oct 2003 03:52:34 GMT

check the PDF for the VA
VA perf Analysis
(attachment)

Rgds,
JL

Re: Data transfer rate

Stefan Farrelly — Wed, 15 Oct 2003 03:58:24 GMT

Just benchmarked an EVA 5000 the other day at HP - down 1 single 2Gigabit fibre connection to an HP rp8400 the raw dd speed was a maximum of 125 Megabytes per second.

Re: Data transfer rate

Jean-Luc Oudart — Wed, 15 Oct 2003 03:59:43 GMT

another extract from a PDF (too big to post here)
Rgds,
JL

Re: Data transfer rate

Leif Halvarsson_2 — Wed, 15 Oct 2003 04:20:21 GMT

Hi,
Transfer rates depends much of the array configuration (number of disks) and the type of data. Teoretically you can reach a raw transfer rate of 2Gbit for each FC port (4* 2= (Gbit/s) with a large number of disks but dont expect that performance if transfering millions of small files (for example).
Also note the difference with read/write. Write operations is much more disk intensive then read (factor 2-6) and, will of course decrease transfer rate.

Re: Data transfer rate

david5337_1 — Wed, 15 Oct 2003 06:19:02 GMT

You can use the SANergy software to test it.
Different configuration will happen different result.
Raid level is very important and memory sets.