Re: Fibre Channel disks to two Systems?

2005-09-11 Thread Dean Strik
Danny Braniss wrote: hi danny you are asking too many questions :-), but w/r to netapp: same computer, 1gbE, NFS is about 50% slower than FC. btw, iSCSI (still beta) is only slightly faster than NFS (note NFS is UDP, iSCSI is TCP). Of course NFS can be TCP as well. And must be TCP for

Re: Fibre Channel disks to two Systems?

2005-09-11 Thread Jonathan Fosburgh
On Friday 09 September 2005 01:59 pm, Danny Howard wrote: From my research, I am thus far most impressed with the SANbloc 2Gb, which holds fourteen FC drives in a 3U rackmount. It can be had with redundant RAID controllers, or as a JBOD. There are similar products from other vendors as

Re: Fibre Channel disks to two Systems?

2005-09-10 Thread Danny Braniss
hi danny you are asking too many questions :-), but w/r to netapp: same computer, 1gbE, NFS is about 50% slower than FC. btw, iSCSI (still beta) is only slightly faster than NFS (note NFS is UDP, iSCSI is TCP). as to reliability, the netapp is worth avery penny (actualy K$ :-), had only

Fibre Channel disks to two Systems?

2005-09-09 Thread Danny Howard
[NOTE: If posting followup, please mind the cross-post to -questions and -scsi.] Hello, We host our PostgreSQL database on FreeBSD. Until now, we have just built the beefiest DB server we can spec, and then dump the data every thirty minutes to a backup DB server, so if the primary DB

Re: Fibre Channel disks to two Systems?

2005-09-09 Thread Dan Nelson
In the last episode (Sep 09), Danny Howard said: As I understand it, I can have an FC loop with one or more drives, connected to two servers, and either server can talk to one or the other drives exclusively. My QUESTION is: how is the arbitration done in FreeBSD? You run camcontrol on