On 11/10/2010 11:05 PM, Bill Broadley wrote: > On 11/08/2010 07:33 PM, Rick Moen wrote: >> Quoting Alex Mandel ([email protected]): >> >>> Good Call, I did look a little at finding a drive case that was both >>> eSata and usb. The drive case was the cheapest part by far but esata/usb >>> isn't so common. I'm not sure if the board in between would still be an >>> issue. If I happen to come upon a good deal on such a case I might try >>> it. Anyone have an external eSata they could try to get SMART data on? >> >> All libata drivers support SMART -- which is what one would expect, >> given that libata leverages the kernel's SCSI layers. >> https://ata.wiki.kernel.org/index.php/Libata_Feature_Table >> (The particular SATA interface, internal vs. eSATA, is not an issue.) > > While technically true, often eSATA is combined with a multidisk chassis > and has a lame/broken chip that multiplexes a single SATA connection to > multiple drives. Said lame/broken chip often hides the SMART data. I > find is similarly frustrating when the RAID controller does the same > thing. It's really really annoying to have to pull a failed drive to > get it's model and serial number so you can RMA it. > > It's also worth mentioning while SMART is cool, I like the idea, and it > sounds really useful. The studies that I've seen show SMART is useless > for predicting failures. Sure you can get various interesting metrics > but there's little relationship between any of the numbers it gives you > and losing your entire disk in the near future. > > The largest of said studies was the Google paper which covered an > impressive number of disks across all major brands. >
Good news, that particular case does pass it through so yay SMART data and HDDtemp. I think just knowing the temp on the drive is going to be useful(and I can test if keeping the fan on is worth it) and getting a report of how many bad sectors will give me a little piece of mind. http://www.newegg.com/Product/Product.aspx?Item=N82E16817173043 I also no longer have to use a custom udev rule to get the drive mounted in the right spot. Downside being I'm not sure the eSata is hot-swappable so I'll have to take the system down anytime I want to hook the external up to something else. Thanks, Alex _______________________________________________ vox-tech mailing list [email protected] http://lists.lugod.org/mailman/listinfo/vox-tech
