P
Peter F
Hi All,
I need some information to resolve problems which we are experiencing these
are explained fully below.
Management are attempting to drive down the cost of legacy via the
accelerated closure of some infrastructure core nodes 1 & 5.
Basically this gives two problems to solve:
1. Rehoming of last 100 or so live User accounts on CN1 and CN5
2. Finding an alternative home for the shared data currently held in file
store at each core node - a new WSS Farm has been setup at CN4
Progress so far:
All user accounts on CN1 successfully rehomed. Every reason to believe that
same process will work for user accounts on CN5
Migration of CN5 not yet commenced following the identification of issues
below:
1. Access databases
There are over 2000 access databases on CN5 totalling around 9GB in size. A
number of these are obsolete and the user base are doing some house keeping.
A number of these are deemed business critical - these are known as Registry
or CDC databases. Basically, these databases contain hyperlinks to various
documents and I believe that this is the way in which users find documents.
The main users of this approach are locally based and hence are local to the
data. Some of these databases were copied to CN4 for trial purposes and the
performance of opening these database is deemed unacceptable. Not a total
surprise for access databases over the WAN.
2. Static Hyperlinks from Access Databases
The CDC databases identified above contain absolute rather relative
hyperlinks - hence moving the data will cause the link to fail
3. Static Hyperlinks in Documents
Similarly the documents contain absolute rather relative hyperlinks - hence
moving the data will cause the link to fail
4. Network Performance & Capacity
We have investigated loading on the appropriate Service Deliver Points and
also bandwidth across the channel - none of these are overloaded at present,
although we would need to uplift the bandwidth of the CN4 SDP to cater for
the additional traffic if the CN5 data was to be moved there. Network
latency on the cross channel link has recently been measured as quite high
(150ms). Local Users have done some trials on different file types at CN4
Word, Excel, Powerpoint and are generally unhappy.
We've had some loose discussions around can we hold the access databases
locally? Maybe the users could replace the hyperlinks in access databases
with relative via find and replace. We have no idea what to do about
hyperlinks in documents. The user have recognised that static hyperlinks are
not the way forward, and are happy to proceed with relative hyperlinks going
forward if someone solves the "today" problem.
My initial conclusions are
That there are outline options which would lead to the closure of CN5 - my
suspicion is that there is a "Minimum Operable Solution " which would allow
the users to continue to operate (albeit with some pain) and will allow the
closure on CN5. There is probably one or more solutions which would cost
more, take longer, but provide more benefits to the users.
I would be interested if anyone on this forum has come across or could offer
any advise.
I need some information to resolve problems which we are experiencing these
are explained fully below.
Management are attempting to drive down the cost of legacy via the
accelerated closure of some infrastructure core nodes 1 & 5.
Basically this gives two problems to solve:
1. Rehoming of last 100 or so live User accounts on CN1 and CN5
2. Finding an alternative home for the shared data currently held in file
store at each core node - a new WSS Farm has been setup at CN4
Progress so far:
All user accounts on CN1 successfully rehomed. Every reason to believe that
same process will work for user accounts on CN5
Migration of CN5 not yet commenced following the identification of issues
below:
1. Access databases
There are over 2000 access databases on CN5 totalling around 9GB in size. A
number of these are obsolete and the user base are doing some house keeping.
A number of these are deemed business critical - these are known as Registry
or CDC databases. Basically, these databases contain hyperlinks to various
documents and I believe that this is the way in which users find documents.
The main users of this approach are locally based and hence are local to the
data. Some of these databases were copied to CN4 for trial purposes and the
performance of opening these database is deemed unacceptable. Not a total
surprise for access databases over the WAN.
2. Static Hyperlinks from Access Databases
The CDC databases identified above contain absolute rather relative
hyperlinks - hence moving the data will cause the link to fail
3. Static Hyperlinks in Documents
Similarly the documents contain absolute rather relative hyperlinks - hence
moving the data will cause the link to fail
4. Network Performance & Capacity
We have investigated loading on the appropriate Service Deliver Points and
also bandwidth across the channel - none of these are overloaded at present,
although we would need to uplift the bandwidth of the CN4 SDP to cater for
the additional traffic if the CN5 data was to be moved there. Network
latency on the cross channel link has recently been measured as quite high
(150ms). Local Users have done some trials on different file types at CN4
Word, Excel, Powerpoint and are generally unhappy.
We've had some loose discussions around can we hold the access databases
locally? Maybe the users could replace the hyperlinks in access databases
with relative via find and replace. We have no idea what to do about
hyperlinks in documents. The user have recognised that static hyperlinks are
not the way forward, and are happy to proceed with relative hyperlinks going
forward if someone solves the "today" problem.
My initial conclusions are
That there are outline options which would lead to the closure of CN5 - my
suspicion is that there is a "Minimum Operable Solution " which would allow
the users to continue to operate (albeit with some pain) and will allow the
closure on CN5. There is probably one or more solutions which would cost
more, take longer, but provide more benefits to the users.
I would be interested if anyone on this forum has come across or could offer
any advise.