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OpenVMS Hobbyist Program | Alpha Systems Forums | Alpha Software Forum
Author Boot from Fibre channel fails
sajithsathian
Member

Posts: 12
Location: India
Joined: 14.02.12
Posted on May 07 2017 01:06
I have DS20E with FCA-2354 HBAs. My server fails to boot from a NetApp Clustered ONTAP storage system.

The LUN is detected by the OpenVMS server but fails to boot with error message saying disk path no longer valid. A re-init of the system shows lot of $0$DGA devices as well, which I belive should not come. After an init, executing "show dev dga" on shows the required FC LUNs but the same command run after a "wwidmgr -show wwid" gives the improper $0$DGA devices.

The SAN Boot works on a NetApp 7-Mode system but fails with NetApp Clustered ONTAP storage system.

I have seen this issue on all OpenVMS versions.

Can anyone guide me with this?

Below is the console log messages


P00>>>show dev dga
dga5.1001.0.8.1 $1$DGA5 NETAPP LUN C-Mode 8200
dga5.1002.0.8.1 $1$DGA5 NETAPP LUN C-Mode 8200
dga6.1001.0.8.1 $1$DGA6 NETAPP LUN C-Mode 8200
dga6.1002.0.8.1 $1$DGA6 NETAPP LUN C-Mode 8200
P00>>>boot
(boot dga5.1001.0.8.1 -flags 0,0)
block 0 of dga5.1001.0.8.1 is a valid boot block
reading 1230 blocks from dga5.1001.0.8.1
device dga5.1001.0.8.1 no longer valid
failed to read dga5.1001.0.8.1
bootstrap failure
(boot dga5.1002.0.8.1 -flags 0,0)
block 0 of dga5.1002.0.8.1 is a valid boot block
reading 1230 blocks from dga5.1002.0.8.1
device dga5.1002.0.8.1 no longer valid
failed to read dga5.1002.0.8.1
bootstrap failure
(boot dga6.1001.0.8.1 -flags 0,0)
block 0 of dga6.1001.0.8.1 is a valid boot block
reading 1230 blocks from dga6.1001.0.8.1
device dga6.1001.0.8.1 no longer valid
failed to read dga6.1001.0.8.1
bootstrap failure
(boot dga6.1002.0.8.1 -flags 0,0)
block 0 of dga6.1002.0.8.1 is a valid boot block
reading 1230 blocks from dga6.1002.0.8.1
device dga6.1002.0.8.1 no longer valid
failed to read dga6.1002.0.8.1
bootstrap failure
P00>>>init



Initializing...
1024 Meg of system memory
probing hose 1, PCI
bus 0, slot 7 -- ewa -- DE500-AA Network Controller
bus 0, slot 8 -- pga -- FCA-2354
probing hose 0, PCI
probing PCI-to-ISA bridge, bus 1
probing PCI-to-PCI bridge, hose 0 bus 2
bus 0, slot 5, function 1 -- dqa -- Cypress 82C693 IDE
bus 0, slot 5, function 2 -- dqb -- Cypress 82C693 IDE
bus 0, slot 5, function 3 -- usba -- Cypress 82C693 USB
bus 0, slot 6, function 0 -- pka -- Adaptec AIC-7895
bus 0, slot 6, function 1 -- pkb -- Adaptec AIC-7895
bus 0, slot 7 -- vga -- S3 Trio64/Trio32
bus 0, slot 8 -- pgb -- FCA-2354
bus 2, slot 4 -- eia -- DE602-AA
bus 2, slot 5 -- eib -- DE602-AA
initializing GCT/FRU at 1e6000
Testing the System
Testing the Memory
Testing the Disks (read only)
Testing ei* devices.
Testing ew* devices.
System Temperature is 30 degrees C

COMPAQ AlphaServer DS20E 666 MHz Console V7.3-1, Feb 27 2007 12:58:30
P00>>>show dev dga
dga5.1001.0.8.1 $1$DGA5 NETAPP LUN C-Mode 8200
dga5.1002.0.8.1 $1$DGA5 NETAPP LUN C-Mode 8200
dga6.1001.0.8.1 $1$DGA6 NETAPP LUN C-Mode 8200
dga6.1002.0.8.1 $1$DGA6 NETAPP LUN C-Mode 8200
P00>>>wwidmgr -show wwid
[0] UDID: 5 WWID:01000010:600a-0980-4431-7058-5524-4a76-4e58-576c (ev:wwid0)
[1] UDID: 6 WWID:01000010:600a-0980-4431-7058-5524-4a76-4e58-576d (ev:wwid1)
[2] UDID:-1 WWID:01000010:600a-0980-4431-7058-5524-4a76-4e58-5769 (ev:none)
[3] UDID:-1 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f70 (ev:none)
[4] UDID:1010 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f6a (ev:none)
[5] UDID:1011 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f6c (ev:none)
[6] UDID:1012 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f6e (ev:none)
[7] UDID:21 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f62 (ev:none)
[8] UDID:22 WWID:01000010:60a9-8000-422d-6249-353f-4662-2f56-6638 (ev:none)
[9] UDID:23 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f59 (ev:none)
[10] UDID:24 WWID:01000010:60a9-8000-422d-6249-353f-4662-2f56-6644 (ev:none)
[11] UDID:25 WWID:01000010:60a9-8000-4237-4b4a-732b-4662-6479-2f5a (ev:none)
[12] UDID:26 WWID:01000010:60a9-8000-422d-6249-353f-4662-2f56-6639 (ev:none)
[13] UDID:28 WWID:01000010:60a9-8000-422d-6249-353f-4662-2f56-6637 (ev:none)
P00>>>show dev dga
dga11146.15.0.8.1 $0$DGA11146 NETAPP LUN 820a
dga11146.16.0.8.1 $0$DGA11146 NETAPP LUN 820a
dga17755.1.0.8.1 $0$DGA17755 NETAPP LUN C-Mode 8200
dga17755.2.0.8.1 $0$DGA17755 NETAPP LUN C-Mode 8200
dga22074.15.0.8.1 $0$DGA22074 NETAPP LUN 820a
dga22074.16.0.8.1 $0$DGA22074 NETAPP LUN 820a
dga24587.15.0.8.1 $0$DGA24587 NETAPP LUN 820a
dga24587.16.0.8.1 $0$DGA24587 NETAPP LUN 820a
dga25227.15.0.8.1 $0$DGA25227 NETAPP LUN 820a
dga25227.16.0.8.1 $0$DGA25227 NETAPP LUN 820a
dga29707.15.0.8.1 $0$DGA29707 NETAPP LUN 820a
dga29707.16.0.8.1 $0$DGA29707 NETAPP LUN 820a
dga30027.15.0.8.1 $0$DGA30027 NETAPP LUN 820a
dga30027.16.0.8.1 $0$DGA30027 NETAPP LUN 820a
dga30714.15.0.8.1 $0$DGA30714 NETAPP LUN 820a
dga30714.16.0.8.1 $0$DGA30714 NETAPP LUN 820a
dga4795.15.0.8.1 $0$DGA4795 NETAPP LUN 820a
dga4795.16.0.8.1 $0$DGA4795 NETAPP LUN 820a
dga5.1001.0.8.1 $1$DGA5 NETAPP LUN C-Mode 8200
dga5.1002.0.8.1 $1$DGA5 NETAPP LUN C-Mode 8200
dga5883.15.0.8.1 $0$DGA5883 NETAPP LUN 820a
dga5883.16.0.8.1 $0$DGA5883 NETAPP LUN 820a
dga6.1001.0.8.1 $1$DGA6 NETAPP LUN C-Mode 8200
dga6.1002.0.8.1 $1$DGA6 NETAPP LUN C-Mode 8200
dga8970.15.0.8.1 $0$DGA8970 NETAPP LUN 820a
dga8970.16.0.8.1 $0$DGA8970 NETAPP LUN 820a
dga9738.15.0.8.1 $0$DGA9738 NETAPP LUN 820a
dga9738.16.0.8.1 $0$DGA9738 NETAPP LUN 820a
P00>>>
sajithsathian sajithsathiadevan
Author RE: Boot from Fibre channel fails
abrsvc
Member

Posts: 106
Joined: 12.03.10
Posted on May 07 2017 02:06
I had another client that had a similar issue with newer Netapp hardware. In that case, he was not able to boot the san disk but was able to use the san disks as data disks. His solution was to use a local shadow set for the system disk and just use the san disks for data. The problem, we believe is with the Alpha side that does not handle the communications properly during the boot process. Further investigation was not possible at that time due to production requirements. Note that this problem only occurred with the newer Netapp hardware and software levels. I believe that the Ontap version is critical in showing this problem.

Did this problem just show up with an upgrade?

Dan
Author RE: Boot from Fibre channel fails
sajithsathian
Member

Posts: 12
Location: India
Joined: 14.02.12
Posted on May 07 2017 04:45
I was setting up a new OpenVMS environment with Clustered ONTAP and hit this issue. As you mentioned the data disks are working fine. I was even able to mount the boot disk on the DCL prompt after booting from a CD and the files are all readable and intack on the SAN Boot disk. Unfortunately, the Boot part fails.

The same disk after doing backup to another local disk or a NetApp 7-Mode disk works fine as a boot disk.
sajithsathian sajithsathiadevan
Author RE: Boot from Fibre channel fails
abrsvc
Member

Posts: 106
Joined: 12.03.10
Posted on May 08 2017 01:07
As I stated initially, this is an issue with the Alpha and Ontap not being "in- sync" with each other for the boot process. As far as I know, Netapp does not support this setup with the new ontap system and the old alpha systems. Use either the 7-mode or a local set of disks for the boot system and add another on the SAN as a shadow member to keep a copy there as well.

You don't indicate the OpenVMS version. With V7.3-2 you are limited to 3 shadow members and I would have 2 "local" with a copy on the SAN totaling 3 copies. With V8 you can have more which can give you 2 copies on the SAN.

Dan
Author RE: Boot from Fibre channel fails
napobo3
Member

Posts: 1
Joined: 06.07.17
Posted on April 30 2018 01:08
Could you elaborate about the "7-mode", please.
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