Our Kerio mailserver is running on a physical HP proliant ml350 with 2GB Ram and a raid5 scsi h.disks configuration. O.S is linux centos 4 and users (about 70) are mainly using outlook with offline connector and thunderbird via IMAP. Our storage is 60 GB.
Performances are ok. No complaints 'till now
We need now to switch to a virtualized data center (to many small physical servers)and our choice would be vmware Vsphere Essential Plus. Unfortunately our budget is not so high and we cannot afford a SAN so I'd like to know how are kerio's performance used in conjunction with a nas such as a Iomega storCenter. My idea is to buy 2 dell servers and attach them to this shared storage.
Any suggestion is very much appreciated.
thanks and best regards.
I don't know about the performance of the Iomega unit, but I've done performance testing of a Netgear ReadyNAS NVX (4x Western Digital RE3 WD1002FBYS drives or Seagate Barracuda ES.2 ST31000340NS) as an iSCSI volume for storage and found the performance to be nearly equal to a single local drive.
This was on a dedicated gigabit NIC and switch between my server and the ReadyNAS.
Would the performance be good enough for Kerio? That I don't know as I haven't run Kerio on the configuration described above; There are some threads here (can't find my references to them quickly) discussing performance issues with SANs, but on several, the dates are 2+ years old.
I'd suggest, as anything else IT related, create your plan and a backup plan and test both before committing to either.
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