MSA1000 Storage Array

[Greg Cotten]

I have a MSA 1000 storage array controller with dual controllers connected via fiber to two HP-UX servers. Connected to this are two MSA30's with 14 disks in each enclosure. My question is I cannot get the Lun's I have created through the CLI to show up in ioscan. I can see the disks connected via Hyper terminal, and created 1 unit(LUN) with 7 disks. I have created an acl for the unit and set the preferred path. Does anyone have any idea why they are not showing in ioscan. I would like to be able to see all the 7 disks.

[Víctor Cespón]

There are two things not clear on your question.

1) by ACL you mean you have configured selective storage presentation to allow the HBA on that server to access that LUN?

2) The MSA serves LUNs, not physical disks. If you have created a RAID of 7 disks, and one LUN out of it, the server will see one LUN, not 7 disks.

[Johan Guldmyr]

Do you have a SAN switch in between the MSA and the HP-UX servers? If you do, you probably need to zone in the HP-UX servers.

Can the MSA see the HP-UX boxes? Is that what you mean with create ACL/set preferred path?
YOu need to set the selective storage presentation on the LUNs to allow the HP-UX machines to see the new LUNs (think that's what it's called anyway).

I am not very experienced with HP-UX so can't really tell you what you have to do in there to get it to refresh the list.

[Marcus Schack]

It would be helpful if you could send a show units and show disks. That might help us decipher your problem.

[Greg Cotten]

Here is what you asked for:
CLI-1> show units

Unit 1:
In PDLA mode, Unit 1 is Lun 2; In VSA mode, Unit 1 is Lun 1.
Unit Identifier :
Device Identifier : 600508B3-0090F130-6FB096C3-7354006F
Preferred Path : Controller 1 (this controller)
Cache Status : Enabled
Max Boot Partition: Enabled
Volume Status : VOLUME OK
Parity Init Status: waiting for first write
7 Data Disk(s) used by lun 1:
Disk201: Box 2, Bay 01, (B:T:L 1:00:00)
Disk202: Box 2, Bay 02, (B:T:L 1:01:00)
Disk203: Box 2, Bay 03, (B:T:L 1:02:00)
Disk204: Box 2, Bay 04, (B:T:L 1:03:00)
Disk205: Box 2, Bay 05, (B:T:L 1:04:00)
Disk206: Box 2, Bay 06, (B:T:L 1:05:00)
Disk207: Box 2, Bay 07, (B:T:L 1:08:00)
Spare Disk(s) used by lun 1:
No spare drive is designated.
Logical Volume Raid Level: DISTRIBUTED PARITY FAULT TOLERANCE (RAID 5)
stripe_size=64kB
Logical Volume Capacity : 416,780MB

CLI-1> show disks
Disk List: (box,bay) (B:T:L) Size Speed Units
Enclosure 2: SCSI (1:06:00) PROLIANT 4L7E DB0.8C
Disk201 (2,01) (1:00:00) 72.8GB 160 MB/s 1
Disk202 (2,02) (1:01:00) 72.8GB 160 MB/s 1
Disk203 (2,03) (1:02:00) 72.8GB 160 MB/s 1
Disk204 (2,04) (1:03:00) 72.8GB 160 MB/s 1
Disk205 (2,05) (1:04:00) 72.8GB 160 MB/s 1
Disk206 (2,06) (1:05:00) 72.8GB 160 MB/s 1
Disk207 (2,07) (1:08:00) 72.8GB 160 MB/s 1
Enclosure 3: SCSI (3:06:00) PROLIANT 4L7E DB0.8C
Disk301 (3,01) (3:00:00) 72.8GB 160 MB/s none
Disk302 (3,02) (3:01:00) 72.8GB 160 MB/s none
Disk303 (3,03) (3:02:00) 72.8GB 160 MB/s none
Disk304 (3,04) (3:03:00) 72.8GB 160 MB/s none
Disk305 (3,05) (3:04:00) 72.8GB 160 MB/s none
Disk306 (3,06) (3:05:00) 72.8GB 160 MB/s none
Disk307 (3,07) (3:08:00) 72.8GB 160 MB/s none
Disk308 (3,08) (2:00:00) 72.8GB 160 MB/s none
Disk309 (3,09) (2:01:00) 72.8GB 160 MB/s none
Disk310 (3,10) (2:02:00) 72.8GB 160 MB/s none
Disk311 (3,11) (2:03:00) 72.8GB 160 MB/s none

[Víctor Cespón]

You have 7 disks of enclosure 2 in a RAID 5. This is what the server will see, a 406 GB LUN.

The servers do not see the physical disks, only the LUNs. And if you enable SSP, you must specifically allow access to that server to that LUN.

Can you post what you see on ioscan?

[Greg Cotten]

The commands I used are the following:
add unit 1 data="disk201-disk207" raid_level=5
add connection TOP wwpn=.... profile=HP
add acl connection=TOP unit=1
set perferred_path this_controller 1

I also have the following from the MSA1000 Array:
CLI-1> show connections

Connection Name: BOTTOM
Host WWNN = 50060B00-002243FD
Host WWPN = 50060B00-002243FC
Profile Name = HP
Unit Offset = 0
Controller 1 Port 1 Status = Offline
Controller 2 Port 1 Status = Offline

Connection Name: TOP
Host WWNN = 50060B00-0021B06D
Host WWPN = 50060B00-0021B06C
Profile Name = HP
Unit Offset = 0
Controller 1 Port 1 Status = Offline
Controller 2 Port 1 Status = Offline

[Greg Cotten]

Sorry the other post was not complete as far as my disks, here is the correct amount:

CLI-1> show units

Unit 1:
In PDLA mode, Unit 1 is Lun 2; In VSA mode, Unit 1 is Lun 1.
Unit Identifier :
Device Identifier : 600508B3-0090F130-6FB096C3-7354006F
Preferred Path : Controller 1 (this controller)
Cache Status : Enabled
Max Boot Partition: Enabled
Volume Status : VOLUME OK
Parity Init Status: waiting for first write
7 Data Disk(s) used by lun 1:
Disk201: Box 2, Bay 01, (B:T:L 1:00:00)
Disk202: Box 2, Bay 02, (B:T:L 1:01:00)
Disk203: Box 2, Bay 03, (B:T:L 1:02:00)
Disk204: Box 2, Bay 04, (B:T:L 1:03:00)
Disk205: Box 2, Bay 05, (B:T:L 1:04:00)
Disk206: Box 2, Bay 06, (B:T:L 1:05:00)
Disk207: Box 2, Bay 07, (B:T:L 1:08:00)
Spare Disk(s) used by lun 1:
No spare drive is designated.
Logical Volume Raid Level: DISTRIBUTED PARITY FAULT TOLERANCE (RAID 5)
stripe_size=64kB
Logical Volume Capacity : 416,780MB

CLI-1> show disks
Disk List: (box,bay) (B:T:L) Size Speed Units
Enclosure 2: SCSI (1:06:00) PROLIANT 4L7E DB0.8C
Disk201 (2,01) (1:00:00) 72.8GB 160 MB/s 1
Disk202 (2,02) (1:01:00) 72.8GB 160 MB/s 1
Disk203 (2,03) (1:02:00) 72.8GB 160 MB/s 1
Disk204 (2,04) (1:03:00) 72.8GB 160 MB/s 1
Disk205 (2,05) (1:04:00) 72.8GB 160 MB/s 1
Disk206 (2,06) (1:05:00) 72.8GB 160 MB/s 1
Disk207 (2,07) (1:08:00) 72.8GB 160 MB/s 1
Enclosure 3: SCSI (3:06:00) PROLIANT 4L7E DB0.8C
Disk301 (3,01) (3:00:00) 72.8GB 160 MB/s none
Disk302 (3,02) (3:01:00) 72.8GB 160 MB/s none
Disk303 (3,03) (3:02:00) 72.8GB 160 MB/s none
Disk304 (3,04) (3:03:00) 72.8GB 160 MB/s none
Disk305 (3,05) (3:04:00) 72.8GB 160 MB/s none
Disk306 (3,06) (3:05:00) 72.8GB 160 MB/s none
Disk307 (3,07) (3:08:00) 72.8GB 160 MB/s none
Disk308 (3,08) (2:00:00) 72.8GB 160 MB/s none
Disk309 (3,09) (2:01:00) 72.8GB 160 MB/s none
Disk310 (3,10) (2:02:00) 72.8GB 160 MB/s none
Disk311 (3,11) (2:03:00) 72.8GB 160 MB/s none
Disk312 (3,12) (2:04:00) 72.8GB 160 MB/s none
Disk313 (3,13) (2:05:00) 72.8GB 160 MB/s none
Disk314 (3,14) (2:08:00) 72.8GB 160 MB/s none
Enclosure UNKNOWN (backplane communication failure), bus 00:
Disk102 (1,02) (0:01:00) 72.8GB 160 MB/s none
Disk103 (1,03) (0:02:00) 72.8GB 160 MB/s none
Disk105 (1,05) (0:04:00) 72.8GB 160 MB/s none
Disk106 (1,06) (0:05:00) 72.8GB 160 MB/s none
Disk107 (1,07) (0:08:00) 72.8GB 160 MB/s none

[Greg Cotten]

here is the ioscan, I took out a lot of the stuff so it would not clutter up this. But 0/5 path is the Fiber adapter and as you can see the HP-UX server does not even see the array controller. In the past it did but only the controller. I have tried so many different things that I can't even get it to recognize the controller anymore.


0/5 ba Local PCI-X Bus Adapter (783)
0/5/1/0 fc HP Tachyon XL2 Fibre Channel Mass Storage Adapter
0/5/1/0.8 fcp FCP Protocol Adapter
0/5/1/0.8.0.255.0 ext_bus FCP Device Interface
0/5/1/0.8.0.255.0.1 target
0/5/1/0.8.0.255.0.1.0 ctl HP MSA CONTROLLER

[Rob Leadbeater]

Hi,

Your "show connections" indicates that the connections to the HP-UX box are offline...

What's the physical connection from the server to the MSA ?

Are you using the built in SAN switch(es) in the MSA1000 or an external SAN switch ?

As mentioned earlier in the thread, have those SAN switches been zoned to allow the server to see the MSA ?

Cheers,

Rob