Does VSP Midrange support NDM? Where to find technical resource (document & training) regarding NDM? Some previous article point out G1000 hardware guide, but could not find it.
G200/400/600/800 don't support NDM but probably plan.
You can find out NDM in the HCS user guide.
Recently I worked closely on VSP G 800 (Presales, technical) the NDM exist partially, i.e. for example to re-provision third-party storage through Gx00 on windows host you will need a single reboot for LUN ID changes , then online data migration to HDS storage would be online ,
Currently as far as I know HDS support NDM from within HDS SAN portfolio only ,
Thamer, please don't confuse NDM with the standard migration w/virtualization (UVM/TSM) scenario. The latter is supported on all models and can be performed by any ASP or customer themselves.
I am not sure if you aware of NDM or standard migration w/virtualization (from technical perspective), I am working within ASP organization and the latter you are talking about is not exist !!!
Let me know how you can separate the NDM from Virtualization ????? at the end the customer has one concern/question … what is the required down time to migrate my existing storage to your pretty HDS storage ???? HDS NDM totally based on virtualization mechanism!!!,
Again, seems you are confusing the "Migrate Data" wizard in TSM with NDM.
1. NDM = GSS service, which is (as per the name) non-disruptive - does not require any downtime of servers, as the new devices assume the same WWID as the original storage. Supported ONLY for migration from HDS storage (not even HP XP). I am not allowed to discuss the internal workings with you here publicly (as I am a member of HDS GSS, trust me, I know what I am talking about).
2. Virtualization (UVM) + Volume Migration (TSM) - this is probably what you are referring to. This involves a reboot of servers to rescan for new volume IDs. After the virtualisation is done, the migration is done in the background by TSM. And NO, this is not called NDM, nor it is called "partially supported" NDM.
Hi GSS Service J,
When you say “. NDM = GSS service, which is (as per the name) non-disruptive - does not require any downtime of servers, as the new devices assume the same WWID as the original storage. Supported ONLY for migration from HDS storage (not even HP XP). I am not allowed to discuss the internal workings with you here publicly (as I am a member of HDS GSS, trust me, I know what I am talking about).”
This what I have Mentioned exactly, NDM is within HDS storages only !!, since the WWID will remain as the original,
But as an example if you would migrate Oracle ZFS storage to VSP G800 then NDM (which is data copy that will go on background), virtualization shall be done before and host down time required ( to configure HDLMI and device WWID changes),
I see you understand the technicalities, but you are using the wrong terms.
You are referring to NDM in the example of ZFS migration. The data migration itself (after the 3rd party storage has been virtualised) is non-disruptive, I agree, but it is not called NDM.
What you are talking about is a simple TSM data migration (or as it was called since the beginnig of time: Volume Migration), which is what you use if you move an LDEV between two internal pools and is always non-disruptive, but still not called NDM.
NDM = GSS Service, period. The function you are describing is not called NDM, but Volume Migration. I'm glad we cleared that out.
i am glad too...
i am not sure if you confirm that NDM GSS services based on storage partitioning ... is it ?
If memory serves me correctly, the roadmap for Gx00 states NDM should be available around Feb 2016.
Please note NDM is only allowed to be performed by HDS GSS.
Well, not sure if this is what you are asking, but NDM will require the new storage to assume the old storage's identity - VDKC (in case of VSP) or VSM (in case of G1000).
exactly .. its called storage partitioning... then i a gree with NDM
Retrieving data ...