[j-nsp] High failure rates for M7i/M10i hard disks?

[michael.firth at bt.com]

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> Richard A Steenbergen
> Sent: 22 August 2005 15:31
> To: Jee Kay
> Cc: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] High failure rates for M7i/M10i hard disks?
> 
> What model hard drive are they using on the M7i RE-5.0 
> routing engines 
> these days? AFAIK the M#i model RE's (5.0/5.0+) were custom-made by 
> Kontron explicitly for Juniper, and aren't just existing products. I 
> personally can't say enough bad things about the old IBM 
> Travelstars they 
> used to use, I have quite the stack of dead ones.
> 
> Not to say that hard drives shouldn't be in routers, 
> personally I think it 
> adds an amazing amount of functionality which is worth a 
> little bit of 
> extra risk. I've probably replaced both the hard drives and 
> compact flash 
> from around 20 RE-2.0s and 3.0s, out of hundreds of them that 
> I have run 
> across, including some really roughly handled gear that had 
> been abused in 
> shipping and probably in its prior life. In my experience the 
> CF fails 
> more often than the hard-drive just through age, even with 
> Travelstars 
> involved.
> 
> Really sounds like there may be a production problem with the 
> RE-5.0's,
> 
We seem to have a mixture in our M10is. The older ones have Fujitsu
disks, reported by 'show chassis hardware detail' as being:

FUJITSU MHS2020AT

The newer ones have Hitachi disks, reported as being:

HTS548020M9AT00

Is it these newer disks that people are seeing lots of failures with?

Regards

Michael