SOLVED Is it normal for the wizard to create a volume with only 3/4 disks?

[gpsguy]

That's correct.

In the olden days (8.x), you wouldn't run into the issue. It would have created the volume akin to what the manual setup allows for. Unfortunately, it was also dangerous.

We saw many users try to expand (and did successfully) their pools by striping in a single disk to a RAIDz1/RAIDz2 pool. In 9.1?, they added seat belts to prevent users from making serious mistakes. Unfortunately, one couldn't easily fix the issue you have. We'd have to tell users to install 8.3.x, create the volume, and then install 9.1.

Sometime later, they added the manual setup, to address this issue. If users know what and why they are using the manual setup option, it's okay to use. It's just not the default.

So, if I'm understanding correctly, unless the drives are IDENTICAL, the Wizard will back off by default - just to be safe?

 

[AgedReason]

One thing:

As a purely academic exercise, will creating a pool with this setup drop the usable space in the three larger drives from 2861588MB to 2861556MB, matching the one smaller drive?

 

[Ericloewe]

One thing:

As a purely academic exercise, will creating a pool with this setup drop the usable space in the three larger drives from 2861588MB to 2861556MB, matching the one smaller drive?

Yeah, in your case, it would.

But it'll autoexpand when the smallest drive has been replaced.

 

[AgedReason]

Cool. Just reverse testing my grasp of key concepts. :D

 

[joeschmuck]

So, if I'm understanding correctly, unless the drives are IDENTICAL, the Wizard will back off by default - just to be safe?

Maybe a bug request should be submitted to address any situation similar to this just to widen the tolerance. otherwise why even have a wizard (I'm actually fine without it and prefer to create manually). Here is my bug ticket.

 

[gpsguy]

Yes.

As an aside, you'll also lose an addition 2GB per drive, since FreeNAS puts a swap partition on each drive. This aids in disk replacements when the drive sizes aren't exactly the same. Imagine a case where da3 had been identical to da0-2. One disk fails and you try to replace it with your slightly smaller disk. With the partitions in place, you could use that drive. Don't fret about loosing a few MB. And, don't disable the swap partition.

As a purely academic exercise, will creating a pool with this setup drop the usable space in the three larger drives from 2861588MB to 2861556MB, matching the one smaller drive?

 

[AgedReason]

Maybe a bug request should be submitted to address any situation similar to this just to widen the tolerance. otherwise why even have a wizard (I'm actually fine without it and prefer to create manually). Here is my bug ticket.

 

[jgreco]

Something different going on with that bugger.

Yup. If you want to repeat with

Code:

# grep "^da.: " /var/run/dmesg.boot

(that's quote-caret-d-a-period-colon-space-quote) it'll give you the model numbers and usually drive revisions, which might give us some further insight.

As others have said, you're absolutely fine making a pool with that in there. However, it's very unusual to see this sort of thing within a single mfr's offerings anymore, drive manufacturers tend to avoid it, and even two drives from different mfrs often size the same.

Code:

# grep '^da[2346]: [<1]' /var/run/dmesg.boot | sort
da2: 1907729MB (3907029168 512 byte sectors: 255H 63S/T 243201C)
da2: <ATA ST2000LM003 HN-M 0007> Fixed Direct Access SCSI-6 device
da3: 1907729MB (3907029168 512 byte sectors: 255H 63S/T 243201C)
da3: <ATA TOSHIBA MQ01ABB2 0U> Fixed Direct Access SCSI-6 device
da4: 1907729MB (3907029168 512 byte sectors: 255H 63S/T 243201C)
da4: <ATA ST2000LM003 HN-M 0007> Fixed Direct Access SCSI-6 device
da6: 1907729MB (3907029168 512 byte sectors: 255H 63S/T 243201C)
da6: <ATA TOSHIBA MQ01ABB2 0U> Fixed Direct Access SCSI-6 device

Three different common 4TB drives, all the same size:

Code:

da11: 3815447MB (7814037168 512 byte sectors: 255H 63S/T 486401C)
da11: <ATA ST4000DM000-1F21 CC51> Fixed Direct Access SCSI-6 device

da12: 3815447MB (7814037168 512 byte sectors: 255H 63S/T 486401C)
da12: <ATA TOSHIBA MD04ACA4 FP2A> Fixed Direct Access SCSI-6 device

ada3: <HGST HDN724040ALE640 MJAOA5E0> ATA-8 SATA 3.x device
ada3: 3815447MB (7814037168 512 byte sectors: 16H 63S/T 16383C)

 

[AgedReason]

Yup. If you want to repeat with

Code:

# grep "^da.: " /var/run/dmesg.boot

(that's quote-caret-d-a-period-colon-space-quote) it'll give you the model numbers and usually drive revisions, which might give us some further insight.

I'm happy to have extra eyes on this. Maybe it's not a big deal. But it's still a puzzle. Here's the results:

Show : entire grep results

Welcome to FreeNAS
[root@freenas] ~# grep "^da.: " /var/run/dmesg.boot
da0: <ATA WDC WD30EFRX-68E 0A80> Fixed Direct Access SCSI-6 device
da0: Serial Number WD-WCC4N1004959
da0: 600.000MB/s transfers
da0: Command Queueing enabled
da0: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
da0: quirks=0x8<4K>
da1: <ATA WDC WD30EFRX-68E 0A82> Fixed Direct Access SCSI-6 device
da1: Serial Number WD-WMC4N0H1JAXT
da1: 600.000MB/s transfers
da1: Command Queueing enabled
da1: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
da1: quirks=0x8<4K>
da2: <ATA WDC WD30EFRX-68E 0A82> Fixed Direct Access SCSI-6 device
da2: Serial Number WD-WMC4N0F4C1UJ
da2: 600.000MB/s transfers
da2: Command Queueing enabled
da2: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
da2: quirks=0x8<4K>
da3: <ATA WDC WD30EFRX-68E 0A82> Fixed Direct Access SCSI-6 device
da3: Serial Number WD-WCC4N5AUEJ2C
da3: 600.000MB/s transfers
da3: Command Queueing enabled
da3: 2861556MB (5860467633 512 byte sectors: 255H 63S/T 364797C)
da3: quirks=0x8<4K>
[root@freenas] ~#

Show : condensed grep results

da0: WD-WCC4N1004959 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
da1: WD-WMC4N0H1JAXT 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
da2: WD-WMC4N0F4C1UJ 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)
da3: WD-WCC4N5AUEJ2C 2861556MB (5860467633 512 byte sectors: 255H 63S/T 364797C)

As others have said, you're absolutely fine making a pool with that in there. However, it's very unusual to see this sort of thing within a single mfr's offerings anymore, drive manufacturers tend to avoid it, and even two drives from different mfrs often size the same.

Yeah, I'll likely push forward; but I still have this niggling doubt as to "why" they aren't identical. I'm a "understand the whys" sort of guy, but I'm not sure I'm prepared to hold up the whole operation just for curiosity's sake. I did make a note to myself to look deeper into it once this battle station is fully armed and operational. Right now I'm wrestling with Windows network permissions. That's always been a royal pain in my bum even working solely within the MS ecosystem.

 

[jgreco]

That's even more confusing. My eyes immediately picked out that one drive had different firmware (0A80) and I immediately said "aha", but then ... it's one of the 0A82's with the quaint size. That's today's lesson to me about assumption being wrong. ;-) I also see the serial number thing but that doesn't seem to lead anywhere offhand, since the 0A80 is "before" that.

If you run whatever the WD maintenance tool is on that odd-sized disk, it'd be interesting to see if maybe the drive had been resized downwards. There's probably also a way to do that from the CLI with smartctl but I'm too {lazy, busy, takeyerpick} to go figure out what that might be right now, sorry.

The only other thought I have is to try a firmware update up to 0A82 on the 0A80 drive and see if suddenly that drive drops down a bit in size. It could be an example of where an older mechanism had a slightly smaller number of sectors, and the newer firmware held more in reserve for some purpose. It would account for all the factors we see, but usually firmware updates would not do that because you could break an existing filesystem on the drive.

 

[AgedReason]

Yeah, when I saw that 80 vs 82 thing, I thought that was it...briefly. Also the mfg. dates don't help set it apart either. Still, I hadn't given any thought to firmware updates. That's something I can look into. I'm sure I can find something to help me ID the firmware versions on the disks.

 

[BigDave]

smartctl output will, in almost all cases, show the firmware version

Code:

[root@freenas] ~# smartctl -a /dev/ada0
smartctl 6.2 2013-07-26 r3841 [FreeBSD 9.2-RELEASE-p9 amd64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:  Western Digital Red (AF)
Device Model:  WDC WD30EFRX-68EUZN0
Serial Number:  WD-WMCxxxxxxxxx
LU WWN Device Id: 5 0014ee 0ae528ca9
Firmware Version: 80.00A80
User Capacity:  3,000,592,982,016 bytes [3.00 TB]
Sector Sizes:  512 bytes logical, 4096 bytes physical
Rotation Rate:  5400 rpm
Device is:  In smartctl database [for details use: -P show]
ATA Version is:  ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:  Thu Jul 17 15:00:55 2014 CDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

 

[jgreco]

Also, the 0A80 *is* basically the firmware rev, just shortened up to the essentials.

 

[gpsguy]

Maybe it's one of the funky Red drives that acted like a Green (relative to LCC's).

You might want to post the output of smartctl -a /dev/da3 in "code" tags.

 

[BigDave]

Maybe it's one of the funky Red drives that acted like a Green (relative to LCC's).

You just might have something there. That made me think about the possibility of the drive being refurbished (with the missing sectors being
marked as bad)?

 

[AgedReason]

Wow! Now we're getting somewhere. Just for fun, here's the results from all the drives.

Show : ~# smartctl -a /dev/da0

[root@freenas] ~# smartctl -a /dev/da0
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p28 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: WD-WCC4N1004959
LU WWN Device Id: 5 0014ee 20a144e09
Firmware Version: 80.00A80
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sat Jan 2 12:36:56 2016 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (39120) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 393) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x703d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 178 175 021 Pre-fail Always - 6083
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 152
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 397
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 35
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 30
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 148
194 Temperature_Celsius 0x0022 135 103 000 Old_age Always - 15
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Conveyance offline Completed without error 00% 98 -
# 2 Short offline Completed without error 00% 0 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Show : ~# smartctl -a /dev/da1

[root@freenas] ~# smartctl -a /dev/da1
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p28 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: WD-WMC4N0H1JAXT
LU WWN Device Id: 5 0014ee 65a9b0257
Firmware Version: 82.00A82
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sat Jan 2 12:36:45 2016 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (39600) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 398) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x703d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 182 179 021 Pre-fail Always - 5891
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 31
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 379
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 30
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 25
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 299
194 Temperature_Celsius 0x0022 134 114 000 Old_age Always - 16
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Conveyance offline Completed without error 00% 16 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Show : ~# smartctl -a /dev/da2

[root@freenas] ~# smartctl -a /dev/da2
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p28 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: WD-WMC4N0F4C1UJ
LU WWN Device Id: 5 0014ee 05947c008
Firmware Version: 82.00A82
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sat Jan 2 12:42:46 2016 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (41460) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 416) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x703d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 182 179 021 Pre-fail Always - 5866
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 32
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 395
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 31
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 26
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 311
194 Temperature_Celsius 0x0022 132 109 000 Old_age Always - 18
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Conveyance offline Completed without error 00% 18 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Show : ~# smartctl -a /dev/da3

[root@freenas] ~# smartctl -a /dev/da3
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p28 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: WD-WCC4N5AUEJ2C
LU WWN Device Id: 5 0014ee 2b6bd7e30
Firmware Version: 82.00A82
User Capacity: 3,000,559,428,096 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sat Jan 2 12:07:58 2016 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (40560) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 407) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x703d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 181 176 021 Pre-fail Always - 5941
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 31
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 381
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 31
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 24
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 274
194 Temperature_Celsius 0x0022 132 114 000 Old_age Always - 18
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Conveyance offline Completed without error 00% 18 -
# 2 Short offline Completed without error 00% 0 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

[root@freenas] ~#

 

[BigDave]

Out of the four drives, da0 appears to have older 80.x firmware
versus the remaining three (including da3) which has 82.x,
probably not a firmware issue...
This is not a common thing, so I'd avoid chasing my own tail
on this. Do the manual creation of the pool and let it go.
The 33 megabytes (or so) of space will never be missed.

 

[gpsguy]

It looks like the OP moved the cables. It has been da3 ...

As @BigDave points out, it's still da3. My eyes must be tired.

In any event, I'd take @jgreco 's advice and run the "WD maintenance tool is on that odd-sized disk".

Out of the four drives, da0 appears to have older 80.x firmware

 

[BigDave]

It looks like the OP moved the cables. It has been da3 ...

That's what I thought at first then realized the smaller capacity is still da3

da0 - Serial Number: WD-WCC4N1004959
Firmware Version: 80.00A80
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
3 Spin_Up_Time 0x0027 178 175 021 Pre-fail Always - 6083
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 148
-----------------------------------------------------------
da1 - Serial Number: WD-WMC4N0H1JAXT
Firmware Version: 82.00A82
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
3 Spin_Up_Time 0x0027 182 179 021 Pre-fail Always - 5891
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 299
-----------------------------------------------------------
da2 - Serial Number: WD-WMC4N0F4C1UJ
Firmware Version: 82.00A82
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
3 Spin_Up_Time 0x0027 182 179 021 Pre-fail Always - 5866
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 311
-----------------------------------------------------------
da3 - Serial Number: WD-WCC4N5AUEJ2C
Firmware Version: 82.00A82
User Capacity: 3,000,559,428,096 bytes [3.00 TB]
3 Spin_Up_Time 0x0027 181 176 021 Pre-fail Always - 5941
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 274

 

[gpsguy]

You're right - now I'm seeing things. Are you still in the Christmas mode with the red/green highlighting?

That's what I thought at first then realized the smaller capacity is still da3