[j-nsp] Failures in HD-only M7i routers

[John T. Yocum]

Hello,

What version of JunOS are you running on them? We had a similar problem 
  last year, and Juniper actually replaced our RE.

As for flash memory, we're using a SanDisk card as the main boot media 
now. From what I understand, the Juniper CF cards are just rebranded 
SanDisk cards.

Regards,
John

Raniery Pontes wrote:
> Hi everybody,
> 
>   we´ve been running different M-series boxes including ~20 M7i´s. In 
> the last 12 months, we had an issue with 3 of these M7i´s: they crashed 
> and couldn´t recover "by themselves". These failures happened usually in 
> association to power failures in facilities, and logs also indicate 
> problems when writing to the hard-disk.
> 
> These boxes only have a hard-drive as storage media, so there isn´t a 
> flash memory in the routers.
> 
> After the crash, usually we´ve seen these routers continuously trying to 
> boot from HD, but without success. Then, we had to disconect power, take 
> a breath (it´s serious, about 5 minutes long) and power up the router 
> again. After that, theses routers were able to recover, loading Junos 
> correctly.
> 
> Disregarding what may have have caused these crashes, I´m worried about 
> the recovering capacities of these boxes, after a crash.
> 
> So, I´ve got a simple questions: how dangerous is to run these boxes, 
> without a flash card ?
> 
> I´d like to know if everybody thinks this is a really bad idea, or it 
> shouldn´t be really an issue and I simply had bad luck.
> 
> 
> Thanks
>