| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 6580.1 | Yup exactly the same but a few caveats | SSDEVO::RMCLEAN | | Tue Apr 15 1997 13:51 | 35 |
| The disks on a HSJ50 and HSJ40 are EXACTLY the same!!! If you init the
disks with the HSJ50 you may loose something (Like Forced error information).
<<< Note 6580.0 by COLES1::SIEK >>>
-< Online Upgrade from HSJ40 to HSJ50? >-
Hello!
I have a question regarding the upgrade of a Hsj40 to
a HSJ50:
1. We shadow the disks on one HSJ40 with the disks on another
HSJ40. We want to upgrade the HSJ40s with HSJ50.
Can we do this online:
a. dismount the shadowmembers on one HSJ40
b. set the Pathes to off on that HSJ40
>> You can do a shutdown here instead to ensure the cache is flushed.
>> also do a show to ensure the cache is flushed! You want this because
>> you will be replacing the cache module.
c. replace the HSJ40 Controller with a HSJ50
d. setup the units on the new controller
>> d1. set paths on on the HSJ50
Keeping the paths off will keep the system happier as the
units show up while you are doing the configuration.
e. go online again and run a shadow copy
f. repeat the steps a-e for the other HSJ40
2. Do we have to init the Stripesets/Disks in step d, or
is the dataformat the same on HSJ40 and HSJ50?
>>Absolutely NOT. Be REAL careful to ensure that your configuration is EXACTLY
>>the same as it was on the HSJ40.
Regards
Herbert
|
| 6580.2 | | KERNEL::LOANE | Comfortably numb!! | Thu Apr 17 1997 10:31 | 2 |
| Does the same hold for upgrading from HSD30 to HSZ50?? Is the
Metadata compatible??
|
| 6580.3 | Not quite | SSDEVO::RMCLEAN | | Thu Apr 17 1997 13:20 | 3 |
| Not quite. They are the same for JBOD and raid5 sets but there is a
problem with geometry between HSJ and HSZ.
|
| 6580.4 | How HSD to HSJ? | DV780::THURY | Making it so... | Tue Apr 22 1997 12:20 | 8 |
| How about moving from HSDxx to HSJxx?
I'm about to start an engagement with a customer who is migrating from
DSSI to CI for his disk farm. I've been told that he is now using
HSD30s and is running with mirror sets. Any problem just moving the
RZxx's to the HSJ50s, and rebuilding/redefining the mirror sets?
Denny
|
| 6580.5 | Nope | SSDEVO::RMCLEAN | | Tue Apr 22 1997 14:01 | 3 |
| I see no reason to rebuild the mirror sets. Just configure the HSJ50 in
a similar manner. Just backup your disks, configure the HSJ50, and
plug in the disks and you are done.
|