[j-nsp] M7i Hard Disk Replacement

[Steve Steiner]

On Mon, Aug 17, 2009 at 9:56 AM, Brendan Mannella
<bmannella at teraswitch.com>wrote:

> So I have settled on replacing the hard drive with a SSD. But I have two
> more questions.


>
> 1) I see on the cluepon link that they are using a 8gb drive. RE-400 comes
> with a 20 gig drive. Will a 8gb be fine, or should I get something of
> similar size to the factory size.


Depends on how many logs, trace files, configuration saves, images, etc. you
wish to keep.  The boot image uses less than 1GB, but /var mounts on the HDD
which is where most of the space will be used for the items I mentioned
above.  You could do 8GB, but limit the amount and size of the trace files.
You could script a box to SCP those trace files to a central server and then
do a periodic cleanup of the logs.  Also, syslog to a remote server.  So,
the short answer is "Yes", 8GB is certainly enough, but take care not to
fill up /var.


>
>
> 2) I did have a CF card in the router, is it normal/default behavior for it
> to reboot the router upon disk failure?


 Only if it is enabled under 'chassis routing-engine'.

>
>
> Brendan
>
>
> On 8/14/09 12:50 PM, "Jonas Frey" <jf at probe-networks.de> wrote:
>
> > I recommend using SSD's, see:
> >
> >
> http://juniper.cluepon.net/index.php/Replacing_the_harddisk_with_solid_state_f
> > lash
> >
> > Regards,
> > Jonas
> >
> >>>> Hello,
> >>>>
> >>>> I was wondering if anyone has successfully replaced a hard disk on a
> M7i
> >>>> RE-5.0. If so with what model disk, and once installed what is the
> >>>> procedure
> >>>> to get the disk back to working/formatted condition.
> >>>
> >>> No magic involved. Just replace it with a disk of the same or greater
> >>> capacity. Be sure it's one rated for continuous operation, not a
> >>> standard laptop drive. (This will make the drive a lot more expensive!)
> >>>
> >>>
> >>> Then just "request system snapshot partition" for format, partition,
> load
> >>> the drive.
> >>
> >> Make sure the jumper on the drive is set to "slave" mode.
> >>
> >> - Kevin
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