Re: Smartctl output for SMR drives

SMR Drive identification - See clause 9.11.5.12.1 of the ATA ACS-4 standard (www.t13.org)

Info is in Identify Device Data Log Address 30h - Support Capabilities - page 03h - Offset 104...111
	Use smartctl -l gplog,0x30,3 to get the raw "Support Capabilities" page

For the 3 types of SMR drives:
DM - Device Managed 
	The device may set the zoned field = bits 1:0 = 10b or it may not (most DM drives)... i.e. it's optional and came out long after DM drives were in production
HA - Host Aware - zoned field = bits 1:0 = 01b (Required)
	Has information in the Zoned Device information - Page 09h - Offset 0..7 is non-zero
HM - Host Managed (Type 14) drive - zoned field = bits 1:0 = 00b


Jeff

| -----Original Message-----
| From: Elisa Erroi [mailto:[email protected]]
| Sent: Tuesday, May 31, 2016 2:05 AM
| To: [email protected]
| Subject: [smartmontools-support] Smartctl output for SMR drives
| 
| Hello all,
| 
| I'm looking for a way to determine if a hard drive uses SMR. I thought it may be
| possible with smartmontools but can't find any documentation about this, that's why
| I'm asking here. Any help?
| 
| Thanks a lot in advance!
| 
| Cheers,
| Elisa
| 
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What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are 
consuming the most bandwidth. Provides multi-vendor support for NetFlow, 
J-Flow, sFlow and other flows. Make informed decisions using capacity 
planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e