[T10] T10/22-030r4 SSC-5 AM1: Volume Useful Life Remaining & Application Design Capacity updated

Kevin D Butt kdbutt at us.ibm.com
Fri Mar 18 15:29:38 PDT 2022


Curtis,

It is supposed to be on the whole thing. I can add a reference to the volume section.

Kevin D. Butt - kdbutt at us.ibm.com<mailto:kdbutt at us.ibm.com> (He/Him/His)
SCSI Architect, T10 Standards, Tape Development Ecosystem
Office: 520-799-5280
MS 6TYA, 9000 S. Rita Rd.,
Tucson, AZ 85744

From: Ballard, Curtis C (HPE Storage) <curtis.ballard at hpe.com>
Sent: Friday, March 18, 2022 15:07
To: Kevin D Butt <kdbutt at us.ibm.com>; Darryl Torske <Darryl.Torske at Quantum.Com>
Cc: t10 at t10.org
Subject: [EXTERNAL] RE: T10/22-030r4 SSC-5 AM1: Volume Useful Life Remaining & Application Design Capacity updated

Thanks Kevin, Have you considered a different name for the useful life? Right now it is proposed as “Volume useful life remaining” and SSC-5 has a definition for “volume”: A volume is composed of: ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ZjQcmQRYFpfptBannerStart
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Thanks Kevin,

Have you considered a different name for the useful life?  Right now it is proposed as “Volume useful life remaining” and SSC-5 has a definition for “volume”:

A volume is composed of:

a) the medium (see 4.2.2.3);

b) its physical carrier (e.g., reel, cartridge, cassette);

c) MAM, if present; and

d) any other elements contained in the physical carrier (e.g., cartridge memory).

Since the volume is more than the media it brings in wear due to load/unload, age, etc.

If this is supposed to be “media life remaining” then we should change the name.  If it is supposed to consider the wear on the physical carrier, MAM, and other elements, then the description should probably cross reference to the sub-clause on volumes.

Curtis

From: Kevin D Butt <kdbutt at us.ibm.com<mailto:kdbutt at us.ibm.com>>
Sent: Friday, March 18, 2022 2:44 PM
To: Ballard, Curtis C (HPE Storage) <curtis.ballard at hpe.com<mailto:curtis.ballard at hpe.com>>; Darryl Torske <Darryl.Torske at Quantum.Com<mailto:Darryl.Torske at Quantum.Com>>
Cc: t10 at t10.org<mailto:t10 at t10.org>
Subject: T10/22-030r4 SSC-5 AM1: Volume Useful Life Remaining & Application Design Capacity updated

I updated the volume lifetime remaining parameter to clarify that this is related to usage and not how long the magnetic recording can last (e.g., 30 years). Yes, somebody did ask me if this parameter was indicating how much of 30 years the cartridge had left. :-)
I also changed “indicates” to “contains” so it matches the rest of the parameters in log page 17h.



Your PDF file will be posted at:



   http://www.t10.org/cgi-bin/ac.pl?t=d&f=22-030r4.pdf<http://www.t10.org/cgi-bin/ac.pl?t=d&f=22-030r4.pdf>


Kevin D. Butt - kdbutt at us.ibm.com<mailto:kdbutt at us.ibm.com> (He/Him/His)
SCSI Architect, T10 Standards, Tape Development Ecosystem
Office: 520-799-5280
MS 6TYA, 9000 S. Rita Rd.,
Tucson, AZ 85744

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