March 17, 200917 yr Replaced a 360 GB (about 95% full) with a new 1 TB this evening... Started the Array...Data Rebuild in Progress... Been running a couple hours now...@ 18% done with another 900 minutes remaining, running @ 15,879 KB/sec at last refresh... Is this "normal" and expected time...Working all the drives pretty had and temps are higher than i'd like on many/most of them...(all mid to upper 40's and one over 50)... Wade
March 17, 200917 yr How many drives do you have and how many are on the PCI bus? Lots of drives on the PCI bus will slow things down. And rebuild speeds are slower than parity check speeds.
March 17, 200917 yr You rebuild speed sounds quite normal. It will speed up a bit once it gets past the size of the smaller drives in your array. Your disk temperatures are going to be very similar to when you do a full parity check, as the disks are being all accessed in a similar way. If you have the server case open. that might be why the disk temps are higher than normal, as the airflow is not going past the drives as usual. In any case, when you get a chance, I'd check out the airflow past the drive reporting a temperature over 50. It sounds as it it has no airflow past it at all from the fans. Joe L.
March 17, 200917 yr Was about to post the same so will change it up a bit. Heres my attitude towads drive temps... its easy to be anal but with parity you dont really need to be. Lots of people will swear you want drive in the 20s or low 30s. other will say this is too cold (i.e. google). To my eye low 40s is 100% fine. If you are running high 40s then you need to deal with it. 50s is simply too much. You will be surprised what a tiny amount of correctly directed air will do.
March 17, 200917 yr So I take it this is too low? Model / Serial No. Temperature parity ata-WDC_WD10EADS 19°C disk1 ata-WDC_WD10EACS 19°C disk2 ata-WDC_WD10EAVS 17°C disk3 ata-ST3320620AS 21°C disk4 ata-WDC_WD2500JB 15°C disk5 ata-WDC_WD2500JB 15°C Now, these are freshly spun up drives after sitting for the night (In my nice dry, cool, cellar, with fans blowing accross them... the cellar averages about 15-18 C, perhaps a bit lower over night right now). after a few minutes of a parity check running: Model / Serial No. Temperature parity ata-WDC_WD10EADSWCAU 20°C disk1 ata-WDC_WD10EACSWCAU 20°C disk2 ata-WDC_WD10EAVSWCAU 20°C disk3 ata-ST3320620AS 24°C disk4 ata-WDC_WD2500JBWCAL 26°C disk5 ata-WDC_WD2500JBWCAL 25°C After reading google's "report"... I'm thinking this is a bit too cool... I'm probably going to reduce the speed of the fans and even remove one of the extra exhaust fans I have). The room itself looks like it will do most of the job for me. Sorry if I'm hijacking this thread, feel free to PM me your comments.
March 17, 200917 yr If i were you I would create a new thread. Weve debated this before but its always good for a laugh
March 21, 200917 yr Author You rebuild speed sounds quite normal. It will speed up a bit once it gets past the size of the smaller drives in your array. Your disk temperatures are going to be very similar to when you do a full parity check, as the disks are being all accessed in a similar way. If you have the server case open. that might be why the disk temps are higher than normal, as the airflow is not going past the drives as usual. In any case, when you get a chance, I'd check out the airflow past the drive reporting a temperature over 50. It sounds as it it has no airflow past it at all from the fans. Joe L. This may be more Hardware, but I think I had a pretty serious rats-nest cable mess that was blocking the fans from my IcyDock 5 in 3 Enclosures... I took some time tonight to clean it up...will monitor the temps with the hopefully improved airflow... This is the After...you didn't want to see the before...
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