Re: Recognizing SMR HDDs

2016-05-26 Thread Kenneth D. Merry
On Thu, May 26, 2016 at 16:42:10 +0200, Gary Jennejohn wrote: > On Thu, 26 May 2016 10:10:14 -0400 > "Kenneth D. Merry" wrote: > > > On Thu, May 26, 2016 at 16:00:41 +0200, Gary Jennejohn wrote: > > > protocol ATA/ATAPI-9 SATA 3.x > > > device model

Re: Recognizing SMR HDDs

2016-05-26 Thread Gary Jennejohn
On Thu, 26 May 2016 10:10:14 -0400 "Kenneth D. Merry" wrote: > On Thu, May 26, 2016 at 16:00:41 +0200, Gary Jennejohn wrote: > > protocol ATA/ATAPI-9 SATA 3.x > > device model ST8000AS0002-1NA17Z > > firmware revision AR13 > > The firmware is old,

Re: Recognizing SMR HDDs

2016-05-26 Thread Kenneth D. Merry
On Thu, May 26, 2016 at 15:02:24 +0100, Igor Mozolevsky wrote: > On 26 May 2016 at 14:41, Kenneth D. Merry wrote: > > > On Thu, May 26, 2016 at 15:29:21 +0200, Gary Jennejohn wrote: > > > On Thu, 26 May 2016 08:34:45 -0400 > > > "Kenneth D. Merry" wrote: > >

Re: Recognizing SMR HDDs

2016-05-26 Thread Kenneth D. Merry
On Thu, May 26, 2016 at 16:00:41 +0200, Gary Jennejohn wrote: > On Thu, 26 May 2016 09:41:20 -0400 > "Kenneth D. Merry" wrote: > > > On Thu, May 26, 2016 at 15:29:21 +0200, Gary Jennejohn wrote: > > > On Thu, 26 May 2016 08:34:45 -0400 > > > "Kenneth D. Merry"

Re: Recognizing SMR HDDs

2016-05-26 Thread Igor Mozolevsky
On 26 May 2016 at 14:41, Kenneth D. Merry wrote: > On Thu, May 26, 2016 at 15:29:21 +0200, Gary Jennejohn wrote: > > On Thu, 26 May 2016 08:34:45 -0400 > > "Kenneth D. Merry" wrote: > > > > > On Thu, May 26, 2016 at 08:42:53 +0200, Gary Jennejohn wrote: > > >

Re: Recognizing SMR HDDs

2016-05-26 Thread Gary Jennejohn
On Thu, 26 May 2016 09:41:20 -0400 "Kenneth D. Merry" wrote: > On Thu, May 26, 2016 at 15:29:21 +0200, Gary Jennejohn wrote: > > On Thu, 26 May 2016 08:34:45 -0400 > > "Kenneth D. Merry" wrote: > > > > > On Thu, May 26, 2016 at 08:42:53 +0200, Gary

Re: Recognizing SMR HDDs

2016-05-26 Thread Kenneth D. Merry
On Thu, May 26, 2016 at 15:29:21 +0200, Gary Jennejohn wrote: > On Thu, 26 May 2016 08:34:45 -0400 > "Kenneth D. Merry" wrote: > > > On Thu, May 26, 2016 at 08:42:53 +0200, Gary Jennejohn wrote: > > What kind of drive is it? > > > > ST8000AS 0002-1NA17Z 0X03 Can you send the

Re: Recognizing SMR HDDs

2016-05-26 Thread Gary Jennejohn
On Thu, 26 May 2016 08:34:45 -0400 "Kenneth D. Merry" wrote: > On Thu, May 26, 2016 at 08:42:53 +0200, Gary Jennejohn wrote: > What kind of drive is it? > ST8000AS 0002-1NA17Z 0X03 > Here are some things you can do on any disk to see what it is: > > diskinfo -v /dev/daX >

Re: Recognizing SMR HDDs

2016-05-26 Thread Kenneth D. Merry
On Thu, May 26, 2016 at 08:42:53 +0200, Gary Jennejohn wrote: > Now that ken@ has checked in the SMR code I'm wondering how I can see > whether it's having any effect. > > I have a 8TB SMR disk in a USB3 enclosure. Does the kernel emit any > sort of trace to indicate that it sees the drive as

Re: Recognizing SMR HDDs

2016-05-26 Thread Peter Jeremy
On 2016-May-26 08:42:53 +0200, Gary Jennejohn wrote: >Now that ken@ has checked in the SMR code I'm wondering how I can see >whether it's having any effect. camcontrol(8) has been enhanced with SMR options and there's a new zonectl(8) command - these should be able to

Recognizing SMR HDDs

2016-05-26 Thread Gary Jennejohn
Now that ken@ has checked in the SMR code I'm wondering how I can see whether it's having any effect. I have a 8TB SMR disk in a USB3 enclosure. Does the kernel emit any sort of trace to indicate that it sees the drive as SMR and takes that into account? I have the probe trace enabled in my