[asterisk-users] Saftware RAID1 or Hardware RAID1 with Asterisk

[shadowym]

I've gotten burned by software raid so I'll probably be sticking with
hardware in the future.  If your drive dies for some reason it could affect
the SATA bus and cause the system to crash.  That's what happened to me.  It
wouldn't come back up on the second Raid 1 drive until I removed the bad
one.

With hardware raid that would NEVER happen.  They are designed to isolate
the Sata interface of a drive gone bad and just keep on running.

Are there Hardware Raid cards that don't come with software for monitoring
and emailing warnings?  I know the 3ware cards come with linux software that
can run as a web interface or command line so the whole monitoring argument
is mute IMHO.

-----Original Message-----
From: Arnaud Ligot [mailto:arnaud at cblue.be] 
Sent: Tuesday, August 21, 2007 12:45 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Saftware RAID1 or Hardware RAID1 with Asterisk

My servers run in a datacenter, 50km away from my office... if a led
flash, if the speaker beep... I think I'll not see/hear it ...

My servers are monitored using nagios which has a plugin for software
raid... so if one array goes down, I receive a mail/sms/call/...
futher more, everything is on the same panel: raid, http servers, free
disk space, ...

I think it is better than any led flashing into the DC :-D

A.

On Tue, 2007-08-21 at 10:30 -0400, Steve Totaro wrote:
> I thought that was what the flashing LEDs on the front of the server's 
> HDs were for (besides showing activity). Some I have seen also have an 
> LED near the power button to indicate HD problems.
> 
> I guess if you are building your own boxen and not using enterprise 
> grade servers, this is not the case.
> 
> Thanks,
> Steve Totaro
> 
> C F wrote:
> > While hardware RAID tend to be more reliable, it is not always
> > possible to properly monitor hardware raid in a linux system, unless
> > you write your own code.
> > Consider this:
> > ~# cat /proc/mdstat
> > Personalities : [raid1]
> > md0 : active raid1 sdb2[2](F) sda2[1]
> >       76139968 blocks [2/1] [_U]
> >
> > unused devices: <none>
> >
> > The above is from an active system that one hdd failed. It would take
> > way longer to find such a thing on a hardware raid. Unless it came
> > with a program that emails me notification on such a failure.
> >
> > On 8/20/07, Vidura Senadeera <vidurased at gmail.com> wrote:
> >   
> >> Dear All,
> >>
> >> I would like to get community's feedback with regard to RAID1 (
Software or
> >> Hardware) implementations with asterisk.
> >>
> >> This is my setup
> >>
> >> Motherboard with SATA RAID1 support
> >> CENT OS 4.4
> >> Asterisk 1.2.19
> >> Libpri/zaptel latest release
> >> 2.8 Ghz Intel processor
> >> 2 80 GB SATA Hard disks
> >> 256 MB RAM
> >> digium PRI/E1 card
> >>
> >> Following are the concerns I am having
> >>
> >> I'm planing to put this asterisk server in production enviorment which
is
> >> having E1 connection to the asterisk server, approximately
> >> 20 con-current calls, Music on hold, voice mail boxes.
> >>
> >> 1. If I use Software RAID, what would be the impact to my deployment? (
> >> problems that I have to face with regard to the call flow )
> >> 2. If I use Hardware based RAID 1, what would be the impact to the
system?
> >> 3. According to your practical experiance what is the ideal solution
among
> >> both options?
> >>
> >> I will be highly appreciate your feedback on this regard.
> >>
> >>
> >> --
> >> Thanks & Regards,
> >> Vidura Senadeera,
> >>
> >>
> >>     
> >
> >   
> 
> 
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