I've got a Dual Xeon system Digium Quad T1 and an Idle T1 circuit that I can experiment with. I've been wanting to use Redhat with software Raid 1 on an Asterisk server. Has anyone had any experience with software raid and Asterisk? Also, if the software raid doesn't play, any recommendations for a hardware based IDE Raid controller and suggestions on best practices for setting up the disk partitions (2 X 40 GB. Maxtors) for a mirrored environment would be appreciated. Thanks all -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20040821/3fcf5926/attachment.htm
I used software raids and want to get away from them. I really really like Microlite's BackupEdge tape backup software. BackupEdge does not work with a software raid, only a hardware raid. The second kicker was that the Promise (or any other) hardware IDE raids are considered software raid to the Kernel. And are NOT supported with the new 2.6.x Kernels... My experience with IDE in raid arrays is less than stellar and will be trashing them as I rebuild servers. I have had several instances where one drive fails and the entire array falls over as the kernel struggles to recover from the loss of a drive or the error messages. I have seen this with Linux generated arrays and with the Promise IDE raid cards. Besides the performance of the Promise parallel IDE raid sucks big time. With the excellent tape software above, I don't think I really need them anyway. BackupEdge will generate a bootable CD-Rom that will install your last backup on bare metal after a major malfunction. Lyle ----- Original Message ----- From: Ed Devine To: asterisk-users@lists.digium.com Sent: Saturday, August 21, 2004 1:47 PM Subject: [Asterisk-Users] Asterisk and software Raid I've got a Dual Xeon system Digium Quad T1 and an Idle T1 circuit that I can experiment with. I've been wanting to use Redhat with software Raid 1 on an Asterisk server. Has anyone had any experience with software raid and Asterisk? Also, if the software raid doesn't play, any recommendations for a hardware based IDE Raid controller and suggestions on best practices for setting up the disk partitions (2 X 40 GB. Maxtors) for a mirrored environment would be appreciated. Thanks all -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20040821/64dd19e0/attachment.htm
Ed Devine wrote:> > I've got a Dual Xeon system Digium Quad T1 and an Idle T1 circuit that I > can experiment with. I've been wanting to use Redhat with software Raid > 1 on an Asterisk server. > > Has anyone had any experience with software raid and Asterisk? Also, if > the software raid doesn't play, any recommendations for a hardware based > IDE Raid controller and suggestions on best practices for setting up the > disk partitions (2 X 40 GB. Maxtors) for a mirrored environment would be > appreciated. > > Thanks allI've had no luck with software RAID in Linux. Using RAID1, recovering a drive seems to peg the processor, and the recovery lasts for over 16 hours for 160GB disks. I can't even imagine what it is doing during that period. I played with the /proc values, but I wasn't able to reduce the CPU utilization. Needless to say, with 90-100% CPU utilization, voice quality goes down the toilet--the system was totally unusable until the recovery was complete. I've gone to the 3Ware 7006-2 ($100). This card has two IDE ports (other cards have four, eight, and 12). To the system it appears as a SCSI controller with one drive. Drive recovery is handled on the card. I have an eight port card with 200MB drives on my database machine (RAID5), and it works quite well. 1.4TB of disk. I've lost a drive and the machine continues to operate. I'm sorry to hear about the Promise chip because that is what is on the newer Tyan mother boards. For a 1U or 2U cabinet, I don't have the luxury of a bunch of PCI slots (the two slots are occupied by T405P cards), and I need to use the on-board raid. Does anyone else have any experience with this. Cheers, -- Michael Welter Introspect Telephony Corp. Denver, Colorado +1 303 674 2575 mike@introspect.com www.introspect.com
On Sat, 21 Aug 2004, Ed Devine wrote:> I've got a Dual Xeon system Digium Quad T1 and an Idle T1 circuit that > I can experiment with. I've been wanting to use Redhat with software > Raid 1 on an Asterisk server. > > Has anyone had any experience with software raid and Asterisk? Also, if > the software raid doesn't play, any recommendations for a hardware based > IDE Raid controller and suggestions on best practices for setting up the > disk partitions (2 X 40 GB. Maxtors) for a mirrored environment would be > appreciated.I have a Dell, 1 Ghz PIII 1U rackmount server, w/ a T100P (PRI) running Tao Linux (RedHat Enterprise 3.0) on 2 40 gig drives in RAID-1. I've had as many as 20 calls on the box at one time, and never noticed an issue. Of course, 90% of our calls are pass-through Ulaw, and although we have g729 licenses it doesn't get used very much. Never had a problem with it so far. However, if you are looking for an IDE Hardware Raid solution, I have tried everything on the market, and I can honestly say that for price, compatibility and reliability, the 3Ware cards are the best bet. This is the only card that we spec for clients, as the Promise and Adaptec stuff is garbage. Incidentally, if you want a good deal on a Promise Fast-Track SX 6000, I have a few laying aroung! ;) -- Vice President of N2Net, a New Age Consulting Service, Inc. Company http://www.n2net.net Where everything clicks into place! KP-216-121-ST
On Saturday 21 August 2004 14:47, Ed Devine wrote:> Has anyone had any experience with software raid and Asterisk? Also, if the > software raid doesn't play, any recommendations for a hardware based IDE > Raid controller and suggestions on best practices for setting up the disk > partitions (2 X 40 GB. Maxtors) for a mirrored environment would be > appreciated.Supermicro server system using software RAID1 on two 9.1G UW2 drives. No issues thus far. ~3 months running. -A.
I've got a nearly identical system running on Slackware 9.1 with a Megaraid controller. Works better than expected! Niles> I've got a Dual Xeon system Digium Quad T1 and an Idle T1 circuit that I > can experiment with. I've been wanting to use Redhat with software Raid 1 > on an Asterisk server. > > Has anyone had any experience with software raid and Asterisk? Also, if > the software raid doesn't play, any recommendations for a hardware based > IDE Raid controller and suggestions on best practices for setting up the > disk partitions (2 X 40 GB. Maxtors) for a mirrored environment would be > appreciated. > > Thanks all