Re: Booting from a large RAID
On Tue, 26 Jun 2007 00:39:52 +0100
Dominic Bishop [EMAIL PROTECTED] wrote:
At this point I'm assuming my only option is a separate small HD for the OS
which can be partitioned using bsdlabel. Ideally I would rather not do this
however as the server cases only have 16 drive bays so I'll have to
sacrifice some capacity from the RAID in order to achieve this.
Maybe you can make a USB bootable thumbdrive, if your bios supports booting
from USB devices... you can find them in the low GB sizes now, which should be
enough for the OS to bootup.
Alternatively, one of the IDE Flash cards (attached to the server's IDE
channel) - it may be a cluttered inside the server , but they are actually the
size of a USB thumbdrive. for example,
http://www.pqimemory.com/products-Domindustrial.asp
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Re: Booting from a large RAID
For sanity-sake, most systems have a split backplane 2x4 (Check the Dell PowerEdge 2950 for example) with a RAID-1 root for the system (36gig 15k RPM etc.) and then a 4x150 or whatever RAID5/RAID10 for the Application data. This creates some abstraction and aids in emergency situations. ~BAS On Tue, 2007-06-26 at 00:39 +0100, Dominic Bishop wrote: Ideally I would like this to be configured as a single large RAID5 or RAID6 array, -- Brian A. Seklecki [EMAIL PROTECTED] Collaborative Fusion, Inc. IMPORTANT: This message contains confidential information and is intended only for the individual named. If the reader of this message is not an intended recipient (or the individual responsible for the delivery of this message to an intended recipient), please be advised that any re-use, dissemination, distribution or copying of this message is prohibited. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Booting from a large RAID
I am looking to deploy some new fileservers shortly running on either RELENG_6_2 or RELENG_6, these servers will have 16x500GB SATA drives running on a 3ware 9650 raid controller. Ideally I would like this to be configured as a single large RAID5 or RAID6 array, however this leaves me problems with installing the OS. I can't use bsdlabel on a drive of this size as it has a 2TB limit, and as I understand it I can't use GPT and put the OS on there since the bootloader code isn't capable of booting from a GPT partition. At this point I'm assuming my only option is a separate small HD for the OS which can be partitioned using bsdlabel. Ideally I would rather not do this however as the server cases only have 16 drive bays so I'll have to sacrifice some capacity from the RAID in order to achieve this. Just want to make sure I am correctly understanding the limitations around what I want to do. Any comments/corrections to my line of thinking are welcome. Regards, Dominic Bishop ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
