| Title: | RAID Software for OpenVMS |
| Notice: | READ IMPORTANT NOTE IN 3.15, V2.4 SSB Kit in 3.17 6 |
| Moderator: | COOKIE::FROEHLIN |
| Created: | Fri Dec 03 1993 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 341 |
| Total number of notes: | 1378 |
A customer running OpenVMS 5.5-2 is using host based shadowing across a
mixed architecture cluster. The disks are connected to HSJ's.
For sake of discussion the shadow set has two members each connected
to two different controllers. Each controller is a HSJ40 pair. When a
controller fails, the customer notices the load being moved to the
other HSJ in the controller shelf but the shadow set is broken. It
not is only broken but needs to be rejoined manually and then the copy
must occur.
Is this normal behavior?
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 317.1 | COOKIE::FROEHLIN | Let's RAID the Internet! | Mon Feb 10 1997 09:14 | 10 | |
This is expected behavior of OpenVMS volume shadowing. If a member of a
shadow set fails, it is removed. A copy operation is necessary to add
the member back into the set. This is to guarantee that all members are
equal mirrors of each other.
Btw. this conference is for RAID Software on OpenVMS only.
Discussions about shadowing are better covered in VAXAXP::VMSNOTES or
CSSE32::CLUSTER.
Guenther
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