Is my NAS healthy?

[PTVi]

Hello Guys,

i am running a an HP N36L Microserver with 5 Disks since quiet a while.
As i am now storing data of the whole family i just wanted to add the smart daemon.
I´ve also added the smart reports daemon so that i get every day an email if everythings fine.

My question to you is:

1.) are my harddisks healty and what are the most important figures.
2.) when would you change the disk (i have a raidz for my important volumes)

Disks are attach in txt files --> please have a look

here is what the raidz says:

zpool status

pool: nonraid
state: ONLINE
scan: scrub repaired 0 in 2h38m with 0 errors on Sun Oct 20 02:38:57 2013
config:

NAME STATE READ WRITE CKSUM
nonraid ONLINE 0 0 0
iso9660/Debian 6.0.7 amd64 1p1 ONLINE 0 0 0
ada4p1 ONLINE 0 0 0

errors: No known data errors

pool: raid
state: ONLINE
scan: scrub repaired 0 in 2h12m with 0 errors on Sun Oct 20 02:12:22 2013
config:

NAME STATE READ WRITE CKSUM
raid ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ada2p1 ONLINE 0 0 0
ada3p1 ONLINE 0 0 0
ada1p1 ONLINE 0 0 0

errors: No known data errors


thanks for the help,
Patrick from Austria :)

 

[cyberjock]

Well, you should read up on that SMART stuff so you can interpret the data for yourself. You should be checking them out from time to time for yourself. But here's what I got from your info:

ada0 - too hot(41C) and has 2 CUPS errors. So a disk that should be watched very closely.
ada1 - way too freakin' hot (45C). Has 1 UDMA CRC error, but that's not a big deal.
ada2 - 38C, so its okay, but I bet scrub puts it over the top for temp. 1 CUPS error and 3 UDMA CRC errors. A disk that should be watched closely.
ada3 - way too freakin' hot (46C). 35 sectors have been reallocated and2 UDMA CRC errors, so a disk that should be watched very closely.
ada4 - way too freakin' hot (44C). No issues of consequence.

If you read up on hard drives from the Google white paper 40C is the line where failure rates skyrocket. Staying below 40C at all times is the best way to keep your drives running the longest. Being that 4 of your 5 disks are already over that temperature and the last one is only 2C below, I bet a scrub really cooks your server. If I were you I'd be shutting it down and ordering fans right now. I'm not sure of the fan arrangement in your computer, but if you don't have a fan either blowing air directly over the disks or sucking air directly over your disks you don't have much chance of getting those temps down. I'm not even sure that you can get their temps down with that system(one of the drawbacks of small systems is they become hotboxes which is why I don't recommend them).

Not surprisingly, your disks have problems and are probably too hot 24 hours a day and likely have been since they were installed. At least 1 of your disks is a 7200RPM drive. I'd never have recommended that for a NAS. Higher RPM drives use more power, get a lot hotter, so you have to provide even more cooling to keep them operating properly.