About nsitps1976

nsitps1976 · ‎2010-09-02

So if you buy a 2xxx with only a few disks in or you buy a 31xx with lots of disk the factory will create a 3 disk 32-bit aggregate for the root volume – On the 2xxx I can add disks to the aggregate containing the root volume so I end up with one large 32-bit aggregate – With the 31xx and 2040 I can extend the aggregate containing the root volume for a larger 32-bit aggregate or leave the 32-bit 3 disk aggregate for the root volume and create a new 64-bit aggregate with remaining disks???

nsitps1976 · ‎2010-08-27

Ok, this is good news. Are there any limitations / things I should be aware of if this route was taken? Does it complicate the process in any way?

nsitps1976 · ‎2010-08-27

So you can create a SAN LUN used for VMware VMs within a qtree?

nsitps1976 · ‎2010-08-27

Sorry, I meant 2040.. Thanks for the help again..

nsitps1976 · ‎2010-08-27

I have read in the DOT 8.0 7-Mode admin guide that the root volume is installed/created at the factory before shipping. This is somewhat confusing for me as how does the factory know how I want my disk space utilised? Example: I size a FAS2050 with 17 x 450GB SAS disks and I intend the configuration to look as follows to ensure I get the required usable capacity: 1 x Spare 1 x Default raid group size of 14 x data and 2 x parity As this is a small system I would want the root volume to be created within a single aggregate which will be used for all volumes. Will the factory create a 3 disk aggregate for the root vol and leave me with only 13 disk on which to create my single aggregate (11 data disk) or will they create a single aggregate with all disks and place the root vol here..??.!!?? – Also, how do they know I only want 1 spare disk..? Am I missing something here, this can’t be correct? – Maybe I could understand this with larger systems and many disks but not small configurations..

nsitps1976 · ‎2010-08-27

My mistake, I did mean the 2040. So I would want to do volume replication from a 2040 (dot8) to a 2020 (dot7.3) - Which from what you are saying this can not be done unless the 2040 is downgraded to dot7.3?????

nsitps1976 · ‎2010-08-26

Can I just check that you can replicate between different versions of DataONTAP? For example between FAS2050 which can run DOT8.0 and a FAS2020 which runs DOT7.3

nsitps1976 · ‎2010-08-26

Many thanks for all the help.

nsitps1976 · ‎2010-08-25

A few other questions if you don't mind: 1, If I only wanted to replicate volumes containing VM from A to B could I just use snapmirror (if I didn't want to do vm consistent snapshots/restores at the local site)? 2, With SRM would I only need snapmirror? 3, If I just use snapmirror and not SRM I can use flexclone to test DR and in real DR I just attached replicated volumes to DR ESX servers? Obviously I would need an NFS license also.

nsitps1976 · ‎2010-08-25

Thanks for this also - It is very helpful

nsitps1976 · ‎2010-08-25

thanks for the help

nsitps1976 · ‎2010-08-25

One other thing, I has read somewhere that you need to use the Nexus 1000v on your ESX servers to support FCoE over CNAs - Is this correct?

nsitps1976 · ‎2010-08-25

Has anyone any experience of using native FCoE with this system - We are exploring a green field solution using end-to-end FCoE, see below: IBM x3850 X5 Qlogic CNAs VMware vSphere Cisco Nexus 5010 IBM N 6040 Has anyone done this, tested this? - What was your experience, should we consider it or should we look at FC at the array with FCoE from the switch to the ESX servers?

nsitps1976 · ‎2010-08-25

Hi Greg I have read though the datasheets (thanks for this). So basically you would use the cluster-mode software for high end environments in which you cluster many storage systems together for higher throughput etc? You can 7 mode for environments not needing this level of protection/performance? Also, most software modules can be used with both, for example I am particularly interested in vmware environments at the moment and as such will want to use snapmanager, snapmirror, dedup, flexvol, flexclone etc etc? Basically will I use 7-mode? Also, when would you define which version you would use, at the time of purchase? Sorry to keep asking these questions, I just need to be sure – I am trying to keeps things basic until I gain a better understanding.

nsitps1976 · ‎2010-08-25

Hi Greg I have read the cabling config guides for a system with dual controllers connecting to all shelf’s - Is this all that is needed to ensure that both controllers can take over from the other in the event of failure? Thanks

nsitps1976 · ‎2010-08-25

Is snapmanager for VI licensed at the source and destination? Also, when you mention flexclone for DR tests would this be used to clone a replicated volume so this could be attached to an ESX server at the DR site to access the VMs?

nsitps1976 · ‎2010-08-24

Thanks, I will check this out tomorrow

nsitps1976 · ‎2010-08-24

The term DataONTAP 8.0 Cluster-Mode is used with an actual cluster of two seprate storage systems and DataONTAP 8.0 7-Mode is used in a configuration with a single storage array with two controllers?

nsitps1976 · ‎2010-08-24

Sorry, I meant the licenses required from a NetApp point of view (which is hosting a vmware environment on an NFS volume) to accomplish the brief description I have given. Licenses such as snapmirror, snapmanager etc etc...

nsitps1976 · ‎2010-08-24

Thanks for your help. So if I buy a FAS3140 (for example) with two controllers (active/active?) I will need to configure the system so that each controller can take over from the other in the event of a failure? How do I do this, is there some documentation you can point me at?

nsitps1976 · ‎2010-08-24

I am in the process of learning about NA. I am looking to put together a small proposal for a customer; however I am still unsure of which licenses they would require. Please could someone help with this based on the following requirements. - FAS2040C with SAS disks at primary site - FAS2040 with SATA disks at DR site - VMs located on NFS at both sites - VM snapshot and replication ability - Deduplication Also, with replication which interface does replication traverse when using NFS or FC, if using FC can one of the ports used for management be used for replication or does this need to be FC replication via an FC fabric etc Many thanks

nsitps1976 · ‎2010-08-20

Ok, I'm there! thanks to all... Do you all use a-sis on your systems for vmware environments? - If so, does it impact performance in anyway (dedup on primary data) - Also, anything one should be aware of when using this technology with vmware?

nsitps1976 · ‎2010-08-20

ok, a little confused. in your example above if the thin lun has 2TB of data dumped onto it and later deup reduces the used stroage down to 500GB on the storage size will it look as though the lun has only 500GB of data within or the full 2TB? - This also has the affect of the containing volume now only using 500GB and thus the arrg has been freed of 1.5TB which can be used by other volumes?

nsitps1976 · ‎2010-08-20

So it is the volume which reduces in size (provisioned size)?

nsitps1976 · ‎2010-08-20

Yes but if you create a thin vol/lun of say 2TB - You P2V some VMs and end up with 1.5TB used on the vol/lun - When you run dedup and replace sufficient block so you end up with 500GB used, your vol/lun is still 1.5TB in size (provisioned from 2TB) as this cannot be reduced in size. You end up with no real benefit apart from the fact the vol/lun will allow you to store a further 1.5 TB on the vmfs datastore, however you cannot place more VMs on the datastore due to vmfs limits (this is an example)???? What I am getting at is that the lun can not be reduced in size after dedup has been ran and hence no other volumes/luns can benefit... Am I right or wrong on this?

Re: root vol created at factory??

Re: replication between different versions of DOT

Re: replication between different versions of DOT

Re: root vol created at factory??

root vol created at factory??

Re: replication between different versions of DOT

replication between different versions of DOT

Re: Licenses required – VMware Environment

Re: Licenses required – VMware Environment

Re: Active active / cluster / dual controller

Re: Active active / cluster / dual controller

Re: FcOE IBM N 6040 (FAS3140)

FcOE IBM N 6040 (FAS3140)

Re: Active active / cluster / dual controller

Re: Active active / cluster / dual controller

Re: Licenses required – VMware Environment

Re: Active active / cluster / dual controller

Re: Active active / cluster / dual controller

Re: Licenses required – VMware Environment

Re: Active active / cluster / dual controller

Licenses required – VMware Environment

Re: LUNs into FlexVols

Re: LUNs into FlexVols

Re: LUNs into FlexVols

Re: LUNs into FlexVols