Needs a real answer

[mikelaw]

looking for fiber channel "connected" storage with SAS/SATA disks inside the storage.

(i.e. 4 servers with hba card each connect to the storage with fiber channel, the storage got 4 ports, and running either SAS/SATA disks due to budget constrain).

MY QUES; are there really substantial performance difference if I am going run I/O intensive application?

May be "SAS is better" BUT, company like Dell only have entry level product with supports SATA only and HP do not have this type of product.

[Torsten.]

Hi,

you can combine the MSA1500 with MSA20 - this is SATA, see

http://h18006.www1.hp.com/storage/disk_storage/msa_diskarrays/san_arrays/msa1500cs/specs.html

[Phillip Thayer]

Or you can use an EVA with FATA which is a good mix of FC and SATA.

http://h18006.www1.hp.com/products/storageworks/eva/index.html

Phil

[Patrick Terlisten]

Hello,

SATA is okay for nearline-storage, but not for intensive I/O. SATA drives dont't like heavy random I/O. The heads and bearings of SATA drives don't have the same quality like SCSI/SAS/FC drives (plastic instead of metal and so on). The wastage is higher if a SATA disk will be used for highly random I/O. On the other hand: A SCSI/SAS/FC can deliver more IOPS then a SATA drive.

You get what you pay for. ;)

SATA is nice for disk-2-disk or low-level fileservices, but not for more.

Kind regards,
Patrick

[Patrick Terlisten]

Hello,

what about some points. ;)

Best regards,
Patrick