RE: Software RAID-1 on FreeBSD 5.4
One last comment for you on software mirroring, While I am not trying to disparage the various efforts, software mirroring provides limited redundancy unless the hard drives are on separate busses. If you do the common thing of putting 2 IDE drives as the master and slave on the primary IDE controller, than all it takes is a buss error on the IDE bus and you have scrambled the data on both hard drives. The same problem exists if you setup a ccd or vinum or gmirror or whatever on a SCSI controller where the disks are all on the same SCSI bus. The same problem also exists on SATA controllers, and on cheaper hardware RAID cards where the disks are on a single IDE bus. This is why hardware RAID controllers are quite often better as the better ones contain multiple interfaces. Ted -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of ptitoliv Sent: Wednesday, June 29, 2005 12:56 PM To: freebsd-questions@freebsd.org Subject: Re: Software RAID-1 on FreeBSD 5.4 Hello again, Thank you for all your answers ! I am going to look at gmirror and ccd. But I have a last question. My disks are differents. One is a Maxtor detected with a 111 GB capacity and the other is a Seagate detected with a 114 GB capacity. Will I have problems trying to use RAID with this configuration ? Best regards, ptitoliv ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Software RAID-1 on FreeBSD 5.4
Hello everybody, I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am asking you what is the best solution to make RAID-1 on FreeBSD 5.4. Thank you for your answers Best Regards, ptitoliv ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Software RAID-1 on FreeBSD 5.4
Am Mittwoch, 29. Juni 2005 21:28 schrieb ptitoliv: Hello everybody, I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am I can't confirm that, but I can recommend gmirror. -Harry asking you what is the best solution to make RAID-1 on FreeBSD 5.4. Thank you for your answers Best Regards, ptitoliv ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] pgpUmU3RilDrv.pgp Description: PGP signature
Re: Software RAID-1 on FreeBSD 5.4
On Wed, 29 Jun 2005 21:28:22 +0200 ptitoliv [EMAIL PROTECTED] wrote: I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am asking you what is the best solution to make RAID-1 on FreeBSD 5.4. you might want to look at this : http://people.freebsd.org/~rse/mirror/ HTH ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Software RAID-1 on FreeBSD 5.4
I have had a lot of sucess with ccd. Its pretty simple to configure. Basically, you just add the kernel device. Label the disks, do a ccdconfig ccd0 stripe size 0 /dev/drive #1 /dev/drive #2. Then newfs ccd0 and mount it where you want it. Casey Hello everybody, I have 2 120 Go Drives installed on my FreeBSD 5.4 Box. I want to create with these 2 disks a software RAID-1 solution. I wanted to use vinum but lots of people say that vinum is very unstable on FreeBSD 5.4. So I am asking you what is the best solution to make RAID-1 on FreeBSD 5.4. Thank you for your answers Best Regards, ptitoliv ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Software RAID-1 on FreeBSD 5.4
Hello again, Thank you for all your answers ! I am going to look at gmirror and ccd. But I have a last question. My disks are differents. One is a Maxtor detected with a 111 GB capacity and the other is a Seagate detected with a 114 GB capacity. Will I have problems trying to use RAID with this configuration ? Best regards, ptitoliv ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Software RAID-1 on FreeBSD 5.4
On Wed, Jun 29, 2005 at 09:56:16PM +0200, ptitoliv wrote: But I have a last question. My disks are differents. One is a Maxtor detected with a 111 GB capacity and the other is a Seagate detected with a 114 GB capacity. Will I have problems trying to use RAID with this configuration ? Not with gmirror. Dunno about ccd. m ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Software RAID-1 on FreeBSD 5.4
On June 29, 2005 05:59 pm, Mark Bucciarelli wrote: On Wed, Jun 29, 2005 at 09:56:16PM +0200, ptitoliv wrote: But I have a last question. My disks are differents. One is a Maxtor detected with a 111 GB capacity and the other is a Seagate detected with a 114 GB capacity. Will I have problems trying to use RAID with this configuration ? Not with gmirror. Dunno about ccd. Last time I tried ccd it would work fine on dissimilar drives so long as the partitions (not slices) that are used for the mirroring were exactly the same size. -- Ean Kingston E-Mail: ean AT hedron DOT org URL: http://www.hedron.org/ I am currently looking for work. If you need competent system/network administration please feel free to contact me directly. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
