Add physical device size to SIZE column in 'zpool list -v' #13106
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@behlendorf @tonynguien RAIDZ I'm not sure with the way [ |
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Generally speaking I like this change, not providing the physical size as part of the |
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For most of the people using mirror, raidz/draid on their zpools, this would not have any impact other than displaying the device size instead of "-". As the This change would slightly impact these 3 cases on how
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Uuh, is it the usable capacity? This is what I get on one of my pools: ata-HGST_HUS728T8TALE6L4_* are 8T, so usable capacity of three of them in raidz1 is 16T? (likewise, ALLOC and FREE are also inflated by 1/(2/3)). This is in contrast with the mirror vdev which is 2x4T and, well, accurate. Or am I misunderstanding what "usable capacity" means here? |
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"Usable" capacity was poor phrasing. It's the amount of space which can be "allocated" from the perspective of the pool. This space doesn't include the vdev labels, and it will be further rounded down to the last full metaslab. For dRAID vdev's some additional space per disk is also reserved. It does include the parity space, which is why your pool reports >16TB.
While minor it seems like we should be able to get rid of this discrepancy. What if we did something like only report
My feeling is this is actually desirable since it makes it easy to spot different sized drives in a top-level vdev.
This seems reasonable to me. |
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However, it's also possible to report the |
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Change: Report psize if it's a physical device else report |
behlendorf
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Feb 25, 2022
tonyhutter
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Feb 28, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561
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Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
nicman23
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Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
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Aug 30, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
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Sep 2, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
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Sep 15, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
pushed a commit
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
andrewc12
pushed a commit
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Sep 23, 2022
Add physical device size/capacity only for physical devices in 'zpool list -v' instead of displaying "-" in the SIZE column. This would make it easier to see the individual device capacity and to determine which spares are large enough to replace which devices. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com> Signed-off-by: Akash B <akash-b@hpe.com> Closes openzfs#12561 Closes openzfs#13106
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Add physical device size/capacity only for physical devices in
'zpool list -v' instead of displaying "-" in the SIZE column.
This would make it easier to see the individual device capacity and
to determine which spares are large enough to replace which devices.
Signed-off-by: Akash B akash-b@hpe.com
Closes #12561
Motivation and Context
Add physical device size to 'zpool list -v' to see the individual device size.
Description
Generally, idea is to report vdev_psize to the userspace. We thought of using the existing field vs_space from vdev_stat_t structure to have the vdev_psize values only for the leaf/child vdevs as the field is unused by them anyway. However, vs_space is being used/referenced in multiple places for different purposes (ie: determining toplevel vdevs in print_list_stats, print_iostat_default) etc. This change could have unintended consequences. So, we added a new member <vs_pspace> to the vdev_stat_t structure for this purpose. With this the existing toplevel logic and other areas are undisturbed and vs_pspace is reported for the leaf vdevs (even for toplevel physical devices) and vs_space for the toplevel vdevs.
How Has This Been Tested?
Types of changes
Checklist:
Signed-off-by.