Re: Which model raid adapter controll card is good for work with Fedora 12 ?
Also, with the right hardware, failed drives can be swapped without shutting the server down. AFAIK it can only be done with SCSI drives, but with SATA hardware being supported by the scsi subsystem, it'll probably work with SATA drives too. SATA supports hot swapping of disks if you have the right power cables (SATA not old ATA style plugs) but not all controllers do - in general AHCI ones have full support for this. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Which model raid adapter controll card is good for work with Fedora 12 ?
On 01/06/2010 02:32 PM, Edward S.P. Leong wrote: Dear All, Happy New Year ! As the title... Would you mind to help ( suggestion ) ? Thanks ! Edward. -ENOTENOUGHINFO What sort of RAID card? How much do you want to spend? What capacities are you looking for? What features do you need? What can't you live without? What's worth compromising for? Help the people on this list to help you by providing as much information about your situation and needs as you can! Regards, Bryn. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Which model raid adapter controll card is good for work with Fedora 12 ?
I've had great success with am AMCC 3ware 9690SA on Fedora 10 and 11. I haven't tried 12 yet. I have a four-disk RAID 5. http://www.3ware.com/ The 9690 can use either SATA or SAS drives depending on the cabling you get. It is an 8-lane PCI express card. You definitely would want to invest in the Battery Backup Unit (BBU), otherwise write caching is disabled, which makes certain RAID levels very slow. The BBU will maintain the write cache in the memory of the 9690 in the event of a power failure, until power can be restored. When write caching is enabled, I find write performance to be very good. There is also the 9650 which is SATA only, and I expect less expensive than the SAS-capable 9690. AMCC sold its 3ware RAID division to LSI earlier this year. I haven't really been following the developments since then, so I don't know what newer models might be available. To be completely fair and honest, I should cop to the fact that I used to be an AMCC 3ware employee: I maintained the Mac OS X driver for this card. But I wouldn't dream of recommending it if I didn't consider it completely reliable. I have all of my own precious data on its RAID 5; I finally set up a home RAID after losing the third hard drive of my career. Hope That Helps, Don Quixote -- Don Quixote de la Mancha quix...@dulcineatech.com http://www.dulcineatech.com Dulcinea Technologies Corporation: Software of Elegance and Beauty. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Which model raid adapter controll card is good for work with Fedora 12 ?
To be completely fair and honest, I should cop to the fact that I used to be an AMCC 3ware employee: I'm not a 3ware employee and I'd second that recommendation *if* you want to go for something with battery backup and some oompf. If you just want low end raid (ie 'I'm sick of disks dying' raid mirroring) then on a PCI express box there probably isn't any point getting hardware assisted raid of any kind. A modern PC is rather good at doing RAID in software and PCI Express fixes the main bottleneck of RAID1 in software. Its also generally true that a desktop PC has lots and lots of spare CPU cycles to use for RAID work. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Which model raid adapter controll card is good for work with Fedora 12 ?
Alan Cox writes: A modern PC is rather good at doing RAID in software and PCI Express fixes the main bottleneck of RAID1 in software. Its also generally true that a desktop PC has lots and lots of spare CPU cycles to use for RAID work. Also, with the right hardware, failed drives can be swapped without shutting the server down. AFAIK it can only be done with SCSI drives, but with SATA hardware being supported by the scsi subsystem, it'll probably work with SATA drives too. pgpM3NCt1zUqA.pgp Description: PGP signature -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Which model raid adapter controll card is good for work with Fedora 12 ?
2010/1/7 Edward S.P. Leong edward...@ita.org.mo: Dear All, Happy New Year ! As the title... Would you mind to help ( suggestion ) ? I use an Areca ARC1220 PCI Express hardware RAID card (inc Intel IOP333 RAID6 engine) with great success. Their driver is included in mainstream kernel. http://www.areca.com.tw/ -c -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
