[OpenAFS] Re: IBM AFS to OpenAFS upgrade complete... problems continue
Thu, 6 May 2010 10:04:54 -0500
On Thu, 6 May 2010 13:42:14 +0300 (EEST)
Atro Tossavainen <firstname.lastname@example.org> wrote:
> Giving the file servers another IP and moving things to that may be
> more intrusive than shutting down vlservers for a while (depending on
> the definition of "a while", of course) if the clients have anything
> like a hard time figuring out that stuff moved from an IP address
> to another. If it's not too much trouble, I think I'd prefer that.
Giving the fileservers a new IP doesn't involve moving anything; I just
mean adding a pseudo-/sub-/virtual interface with a different address.
The very reason I was suggesting the solution with 'vos' and IP changes
etc, was that it has no downtime (all other options have downtime, as
far as I can tell), or clients getting confused etc.
Assuming these commands all succeed, it'd just be something like:
vos listaddrs -printuuid # get the UUID
ifconfig bge0:1 plumb # or whatever iface
ifconfig bge0:1 220.127.116.11 up
vos setaddrs -uuid theuuid -host 18.104.22.168
vos changeaddr 22.214.171.124 -remove
vos setaddrs -uuid theuuid -host 126.96.36.199
# wait 2 hours, then
ifconfig bge0:1 down
ifconfig bge0:1 unplumb
vldb_check should get the functionality for this anyway, though; it'll
just be a little bit more time.