Date: Thu, 6 Nov 2003 16:21:21 -0500 From: "Prabhakaran, Rajesh" <rajeshpr@lsil.com> To: freebsd-scsi@freebsd.org Subject: RE: performance problem with amr driver and Perc 2/SC Message-ID: <0E3FA95632D6D047BA649F95DAB60E570345DE92@exa-atlanta.se.lsil.com>
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If you swap with the newer MegaRAID controller, fw will recognize the legacy array, user just to need to save the disk array configuration. For additional information, please refer to http://www.lsilogic.com/products/stor_prod/raid/index.html. And driver may be found at FreeBSD CVS respiratory. -----Original Message----- From: Jesse Guardiani [mailto:jesse@wingnet.net] Sent: Thursday, November 06, 2003 2:35 PM To: freebsd-scsi@freebsd.org Subject: RE: performance problem with amr driver and Perc 2/SC Prabhakaran, Rajesh wrote: > > Even the data from our I/O performance analysis records shows similar > figure. > PERC 2/SC(466) IO processor has no hardware XOR engine,so their will be > performance lag for RAID 5.Hence adding RAM might not help, migrating to > latest U320 controller, will significantly help. Well, if I DO migrate to a new controller, I'll need to backup my array and reconstruct/reformat it with the new controller, right? So if I'm going to take the time to buy a new controller and reconstruct my array, I might as well get a product that supports FreeBSD with array monitoring and control command line utilities. Does lsilogic offer FreeBSD monitoring and control utilities for the U320 (or similar) controller? And if so, what other controller have you offered in the past that will make full use of my drives? I don't really need a u320 controller. I just need a reliable, high performance SCSI 80 or 160 controller that does RAID 5. -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net _______________________________________________ freebsd-scsi@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-scsi To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org"
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