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

Scott Morris swm at emanon.com
Fri Aug 26 16:39:18 EDT 2005

I dunno, I have laptops that have been on 24x7 for well over a year now, and
they haven't crashed.  *shrug*


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of sthaug at nethelp.no
Sent: Friday, August 26, 2005 4:33 PM
To: ras at e-gerbil.net
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] High failure rates for M7i/M10i hard disks?

> > And that field alert is now out: PSN-2005-08-014
> > 
> > https://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAle
> > rtNumber=PSN-2005-08-014&viewMode=view
> I hope they're not actually saying that the hard drive can't handle 
> being written to every 10 secs?

I'm not going to defend Juniper here - I think we have suffered quite enough
of these disk problems (got woken by a phone call from our NOC this morning
- *another* M7i had stopped working during the night, from the same

However, I *think* what they're saying is that writes every 10 seconds for a
while is not a problem, but writes every 10 seconds 24x7 may be a problem.
Remember what the disk manufacturers have been trying to tell us - there are
differences between disks made for heavy-duty server use (typically SCSI)
and disks made for PC/home use (typically ATA). The M7i/M10i disks are 2.5"
ATA disks (laptop type disks) and are probably not made for continuous use.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no
juniper-nsp mailing list juniper-nsp at puck.nether.net

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