topic Re: Same LUN size but different sectors in Solaris 11 in ONTAP Discussions

Same LUN size but different sectors in Solaris 11

vfukuda1 — Wed, 04 Jun 2025 10:24:07 GMT

Hi guys

We're facing an issue when mapping new LUNs to Solaris 11: I created new LUNs of 300GB but according to the Solaris administrator the new LUNs are not exactly the same as last LUNs mapped

root@srvsparcmml1:~# prtvtoc /dev/rdsk/c0t60A9800038303952543F48637A494649d0s2
* /dev/rdsk/c0t60A9800038303952543F48637A494649d0s2 partition map
*
* Dimensions:
* 512 bytes/sector
* 6016 sectors/track
* 16 tracks/cylinder
* 96256 sectors/cylinder
* 6537 cylinders
* 6535 accessible cylinders
*
* Flags:
* 1: unmountable
* 10: read-only
*
* First Sector Last
* Partition Tag Flags Sector Count Sector Mount Directory
0 2 00 0 288768 288767
1 3 01 288768 288768 577535
2 5 01 0 629032960 629032959
6 4 00 577536 628455424 629032959
root@srvsparcmml1:~# prtvtoc /dev/rdsk/c0t60A9800038303952543F48637A494653d0s2
* /dev/rdsk/c0t60A9800038303952543F48637A494653d0s2 partition map
*
* Dimensions:
* 512 bytes/sector
* 64 sectors/track
* 256 tracks/cylinder
* 16384 sectors/cylinder
* 38404 cylinders
* 38402 accessible cylinders
*
* Flags:
* 1: unmountable
* 10: read-only
*
* First Sector Last
* Partition Tag Flags Sector Count Sector Mount Directory
0 2 00 0 262144 262143
1 3 01 262144 262144 524287
2 5 01 0 629178368 629178367
6 4 00 524288 628654080 629178367
root@srvsparcmml1:~#

Any ideas?

The ammount of blocks in the LUNs at Data Ontap level are the same 322163441664

Re: Same LUN size but different sectors in Solaris 11

AlexDawson — Sun, 23 May 2021 22:23:22 GMT

Can you post the output of lun show-instance for each of them?

thanks!

Re: Same LUN size but different sectors in Solaris 11

vfukuda1 — Tue, 25 May 2021 06:34:59 GMT

It's Data Ontap 8.2.3 7-mode so I suppose the equivalent output would be:

MLIMASAN02> lun show -v /vol/lun_Data05_vol/lun_Data05
        /vol/lun_Data05_vol/lun_Data05 300.0g (322163441664) (r/w, online, mapped)
                Serial#: 809RT?HczIEv
                Share: none
                Space Reservation: disabled
                Multiprotocol Type: solaris
                Maps: SPARC=5
                Occupied Size: 300.8g (322999750656)
                Creation Time: Fri May 19 15:08:54 PET 2017
                Cluster Shared Volume Information: 0x0
                Read-Only: disabled
MLIMASAN02> lun show -v /vol/lun_Data15_vol/lun_Data15
        /vol/lun_Data15_vol/lun_Data15 300.0g (322163441664) (r/w, online, mapped)
                Serial#: 809RT?HczIFU
                Share: none
                Space Reservation: enabled
                Multiprotocol Type: solaris
                Maps: SPARC=35
                Occupied Size:       0 (0)
                Creation Time: Fri May 21 23:42:19 PET 2021
                Cluster Shared Volume Information: 0x0
                Read-Only: disabled

Where LUN Data05 is the old one and Data15 the new LUN I created (as usual)