2010/1/26 Jeremy Chadwick <free...@jdc.parodius.com>: > As mentioned a while back on the list[1], I worked on getting atacontrol > to spit out SMART statistics for ATA disks. Specifically, this would be > those using the standard ata(4) layer (including ataahci.ko and > similar), but not ahci(4) (ahci.ko), which uses ATA/CAM. > > Output resembles the following: > > ID# Attribute Name Curr Worst Thrsh Bytes > --- ------------------------- ----- ----- ----- ----------------- > 1 Raw Read Error Rate 200 200 51 00 00 00 00 00 00 > 3 Spin Up Time 234 229 21 53 20 00 00 00 00 > 4 Start/Stop Count 100 100 0 11 00 00 00 00 00 > 5 Reallocated Sector Count 200 200 140 00 00 00 00 00 00 > 7 Seek Error Rate 200 200 0 00 00 00 00 00 00 > 9 Power On Hours Count 95 95 0 9b 0f 00 00 00 00 > 10 Spin Retry Count 100 253 0 00 00 00 00 00 00 > 11 Calibration Retry Count 100 253 0 00 00 00 00 00 00 > 12 Power Cycle Count 100 100 0 0c 00 00 00 00 00 > 192 Power Off Retract Count 200 200 0 0b 00 00 00 00 00 > 193 Load Cycle Count 200 200 0 11 00 00 00 00 00 > 194 Temperature 116 113 0 22 00 00 00 00 00 > 196 Reallocated Event Count 200 200 0 00 00 00 00 00 00 > 197 Current Pending Sectors 200 200 0 00 00 00 00 00 00 > 198 * Uncorrected Sector Count 200 200 0 00 00 00 00 00 00 > 199 UltraDMA CRC Error Count 200 200 0 00 00 00 00 00 00 > 200 * Write Error Rate 200 200 0 00 00 00 00 00 00 > --- ------------------------- ----- ----- ----- ----------------- > * = values only updated after a short/long/offline test > > Things to note: > > - I've only been testing on RELENG_8 amd64. The code should work on > i386, but if something explodes, let me know. I don't recommend > patching RELENG_7 or even a RELEASE tag with this. > > - I did my best to document the SMART "stuff" throughout the source. > Much to my disappointment SMART attributes are not part of the ATA > or ACS specification; they're mentioned, but attributes and their > interpretation are 100% vendor specific. Decoding them will involve > examining the smartmontools source, which takes time. > > This is why there is no smartmontools "RAW_VALUE" equivalent -- the > code for that piece simply hasn't been written. Instead, I display > the raw bytes associated with each attribute. This should help with > debugging (for the time being). I'll work things out... :-)
As I know, there is no decode for raw value (even in smartmontools). So, you can just store this six bytes in 64-bit variable and print it out. > > - All operations done are read-only (in fact the device is opened in > read-only mode). There may be plans down the road to implement things > like inducing SMART short/long/offline tests, but for now I want to > get attribute support in there. Implementation of tests is quite easy. I've wrote nearly the same project for linux some time ago, so I can htlp you with this project. Please, mail me if you're get interested in my help. wbr, Nickolas _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"