[j-nsp] HDD Write Error

Jonas Frey (Probe Networks) jf at probe-networks.de
Wed Oct 19 15:25:46 EDT 2011 

Hello,

yes that will work. You need to check the interface config of course
(because you have less interfaces).

The M20 will install the correct PFE module when it loads (it will spit
out an error saying its running the incorrect PFE module for this
architecture). So booting will take a minute longer than usual but thats
it.

Jonas

Am Mittwoch, den 19.10.2011, 20:14 +0100 schrieb juniper at iber-x.com:
> Hi experts,
> 
> Thanks for your replies and advices. 
> 
> Just a quick question, as we have an old M5 and M10, we were wondering
> if we could replace directly the HDD from one of these two routers to
> our M20. Is it that possible? any experience doing that? If both of
> them have the same JUNOS installed, and then copy the current
> configuration..  thoughts?
> 
> Many thanks,
> 
> 
> El 19/10/2011 16:56, Jonas Frey (Probe Networks) escribió: 
> > Hello,
> > 
> > havent you changed the HDD yet? Like to live dangerously eh? :-)
> > 
> > This is very likely related because those errors messages causes writes
> > to the HDD....and if your HDD is dead/has bad sectors that will cause
> > trouble.
> > 
> > Good luck,
> > Jonas
> > 
> > Am Mittwoch, den 19.10.2011, 16:19 +0200 schrieb Juniper GOWEX:
> > > Hi all,
> > > 
> > > Twenty days later, the error reappeared. The error appears in the log 
> > > always after a "RPD_SCHED_SLIP: 5 sec scheduler slip, user: 0 sec 0 
> > > usec, system: 4 sec, 228450 usec" messages:
> > > 
> > > 
> > >         /
> > >         Oct 13 23:16:35.278 2011   LEV[2625]: RPD_SCHED_SLIP: 5 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 4 sec, 228450 usec
> > >         Oct 13 23:17:35.862 2011   LEV[2625]: RPD_SCHED_SLIP: 4 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 3 sec, 804772 usec
> > >         Oct 13 23:20:07.655 2011   LEV[2625]: RPD_SCHED_SLIP: 4 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 3 sec, 750490 usec
> > >         Oct 13 23:27:43.598 2011   LEV[2625]: RPD_SCHED_SLIP: 4 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 3 sec, 78894 usec
> > >         Oct 13 23:28:14.755 2011   LEV[2625]: RPD_SCHED_SLIP: 5 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 3 sec, 903324 usec
> > >         Oct 13 23:29:16.124 2011   LEV[2625]: RPD_SCHED_SLIP: 5 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 4 sec, 166013 usec
> > >         Oct 13 23:31:18.118 2011   LEV[2625]: RPD_SCHED_SLIP: 5 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 3 sec, 598753 usec
> > >         Oct 13 23:35:46.293 2011   ssb NH: resolutions from iif 82 throttled
> > >         Oct 13 23:38:25.256 2011   LEV[2625]: RPD_SCHED_SLIP: 4 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 3 sec, 762067 usec
> > >         Oct 13 23:38:55.759 2011   LEV[2625]: RPD_SCHED_SLIP: 5 sec
> > >         scheduler slip, user: 0 sec 0 usec, system: 4 sec, 171438 usec
> > >         Oct 13 23:41:01.342 2011  ssb NH: resolutions from iif 88 throttled
> > >         Oct 13 23:42:16.283 2011  ssb NH: resolutions from iif 93 throttled
> > >         Oct 13 23:46:05.391 2011  smartd[2595]:  Device: /dev/ad1a,
> > >         Failed attribute: (200)Write Error Rate
> > >         /
> > > 
> > > Could this be related?.
> > > 
> > > Best Regards
> > > 
> > > Isidoro
> > > 
> > > 
> > > 
> > > El 22/09/2011 8:05, Josh Farrelly escribió:
> > > > Could you put them both in a Linux box and just 'dd if' them?
> > > > 
> > > > -----Original Message-----
> > > > From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Jonas Frey (Probe Networks)
> > > > Sent: Thursday, 22 September 2011 12:52
> > > > To: Isidoro Cristobal
> > > > Cc: juniper-nsp at puck.nether.net
> > > > Subject: Re: [j-nsp] HDD Write Error
> > > > 
> > > > Dear Isidoro,
> > > > 
> > > > you cant copy the data 1:1....atleast not without alot of work.
> > > > The best thing would be if you reinstall JunOS via a install media (pcmcia/cf card) once you replaced the hard disk.
> > > > Its very easy to replace the hard disk on either RE2/3/4/5...its normally only secured by 4 screens on the RE.
> > > > Make sure to save your config files (JunOS config, SSH keys, other data like home directorys, logs etc) before you replace the HDD if neccessary.
> > > > 
> > > > Best regards,
> > > > Jonas
> > > > 
> > > > Am Mittwoch, den 21.09.2011, 17:18 +0200 schrieb Isidoro Cristobal:
> > > > > Hi,
> > > > > 
> > > > > First of all thank you very much for your quick response .
> > > > > 
> > > > > How to save the data to the new hard disk? Do you know a procedure for
> > > > > replacing hard disk ?
> > > > > 
> > > > > Best Regards,
> > > > > 
> > > > > Isidoro
> > > > > 
> > > > > 
> > > > > 
> > > > > El 20/09/2011 17:29, Jonas Frey (Probe Networks) escribió:
> > > > > > Hi,
> > > > > > 
> > > > > > you are correct, the disk exceeded the maximum write errors
> > > > > > permitted by the SMART value and thus is marked as bad. Prepare for
> > > > > > a complete failure of the drive soon (1-30 days likely).
> > > > > > May be the right time to upgrade the harddisk to a SSD.
> > > > > > http://juniper.cluepon.net/Replacing_the_harddisk_with_solid_state_f
> > > > > > lash
> > > > > > 
> > > > > > Best regards,
> > > > > > Jonas
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > Am Dienstag, den 20.09.2011, 17:09 +0200 schrieb Juniper GOWEX:
> > > > > > > Hi all,
> > > > > > > 
> > > > > > >    From yesterday at the log of my M20 are the following message :
> > > > > > > 
> > > > > > >           smartd[2595]:  Device: /dev/ad1a, Failed attribute: (200)Write
> > > > > > >           Error Rate
> > > > > > > 
> > > > > > > It´s informative, but i think that there is a problem with my HDD (
> > > > > > > I still have to run the smartd commands ) .
> > > > > > > 
> > > > > > > Somebody had this problem ?
> > > > > > > 
> > > > > > > 
> > > > > > > Best Regards
> > > > > > > 
> > > > > > > Isidoro
> > > > > > > 
> > > > > > > 
> > > > > > > _______________________________________________
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