I am looking to see if there is a way to stop the netapp SRA from creating an iscsi igroup and mapping recovered luns to this igroup. I only want fc igroups created and luns mapped to this igroup. The host cluster access both iscsi and fc storage (hence the SRA is creating iscsi igroups), although the iscsi storage is not on the netapp system (hence my recovery is failing)
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Ok, I have an answer from support..... As the shelf's are all SAS based all aggregates (SAS/SATA) will be treated as SAS, aka 'Performance'........ If this is the case then the netapp VASA implementation is useless at this time!...
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Hi. Customer won't be converting the aggr to 64bit as they will not be adding any disks. The only reason for the upgrade is to allow replication to be reversed back from a 32 to 64bit aggr (vol)
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Hi I want to be able to mirror between 32 and 64bit volumes which can be done with 8.1.1, however, does this mean that mirror which existed prior to the source upgrade to 8.1.1 would need to be re done once at 8.1.1. Or can the mirrors stay and once the source is at 8.1.1 I can reverse the mirror (ie, from 64bit to 32bit) I want to get the VSM in place now; however, I can’t as yet upgrade the source from 7.3.4 to 8.1.1. Thanks
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I have installed the netapp VASA component without issue, however, both SAS and SATA datastores are listed as “Performance”. The SATA should be listed as “Value”. Can anyone help on the communities?
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Is it possible to upgrade an aggregate to 64bit (and its volumes) in place without having to add sufficient disks to the aggregate? I am looking to mirror data from this system to a new 8.1.1 system with 64bit aggregates, this I am not concerned about as I know the volumes will be upgraded once made read/writeable…. However, I will be required to reverse the mirror after data migration back to the original system which has a single 34bit aggr. The original system runs 8.0.1P3 which I will upgrade to 8.1.1, however I won’t be adding new disks and I do not want to have to rebuild the system based on a 64bit aggr……
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I am looking for the latest information with regards to using VSC VM backups and snapvault with both LUN and NFS….? Is this possible and what are my options
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this was caching at work - i was UNC'ing from the same client machine - i used a GPO to set a 1023MB limit on offline file cache to prevent exceeding while offline
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I have enabled folder redirection for win 7 “My Documents” – The destination is a qtree with a 1GB User hard quota enabled with an 800MB warning– SMB2 is also enabled – Lastly, offline files are set to sync at log on / log off via group policy. Testing with the client works as expected hitting the warning and limit – Offline files also works as expected syncing changed data once the client is back on the network. However……. If I place say 2GBs worth of data within “My Documents” while offline, then connect back to the network and log on I receive no warning, error etc etc. In fact, when I look at both the local “My Documents” and the location (via UNC) on the qtree ALL the 2GBs of data is there. Checking the system does state that the hard limit has been reached, however, the data is still there and usable! However… If I “df –Vm vol_name” only 1023MB (my hard limit) has been consumed within the host volume (no dedup etc had been enabled). If I try and modify a file when connected to the network at this point, sure enough I receive the not sufficient disk space error…. I could maybe understand the behavior if only looking within the “My Documents” on the local client as caching may be at work, however, when I UNC up to the qtree the data is there! I cannot understand this…???? Oh, I forgot to mention, the client logs report no errors at all and the system is DOT 8.1 7 Mode…
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Hi Scott But what if you were only installing a single HA system which did not necessarily need to be c-mode, however to future proof and have ability to add systems to the "cluster" you decided to go with c-mode?? How would you achieve this? Regards
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Over the last year I have been hearing that c-mode is the future. Even if you are installing a single HA system then c-mode should be used. Based on this I have begun my learning of c-mode and hopefully will attend the new c-mode ncda admin course at some point soon. I have few “early” questions....... When you order a system for a client do you specify it should come as a c-mode system (I have seen nothing to suggest this)? If you have a new (or existing none production) system which is 7-mode, how can this be re-setup as c-mode? Would snapmirror / srm work between a 7-mode and c-mode system (I think not but not 100% sure)
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Thanks for the comments, very helpful. So my strategy is to use multiport boot with port1 configured to boot from LUN0 on wwpn01 on controller1, then wwpn02 controller1, wwpn01 controller2 and finally wwpn02 on controller02. I will then do the same on port2 and set the boot sequence to use port1 then 2. Once the host is loaded ESXi multi pathing will takeover.
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Yes, this is ESXi which will be booting from SAN, nothing to do with the VMs. Could you expand on “You have to configure OS to use redundant pseudo-device and not physical paths” please? As this is the OS boot LUN then my understanding is this LUN will NOT be added as storage with the vSphere client as it does not host VMs, this being the case you cannot amend the MPIO settings? Unless I am wrong? IBM BladeCentre config for boot from SAN with Emulex discussed multi port failover boot. This is based on IBM DS which does LUN failover as opposed to controller failover. Look up “Enabling Emulex Boot from SAN on IBM BladeCentre” (can’t find how to attach the PDF)...
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When booting from san via FC how does the host maintain connection to the boot lun after a failover event? Using an Emulex CNA (fcoe) within the BIOS you have the option to specify multiple boot luns which will be tried sequentially during boot (target wwpn’s), also the 2 nd adapter (port) can attempt boot if all fails on the primary, I think?? Based on this all is well during boot even if a cable, switch, controller was to fail. However , if a failover event were to occur during operation how would the host see its boot volume? Single image presents the same WWNN, however, after a failover event the WWPNs do NOT failover....? Or is this facilitated via the host (ESXi) mulitpathing once the OS is loaded?? Lastly, does Emulex Multi-Port Failover Boot work with NetApp controller failover? I read in some documentation that is only works with LUN failover as opposed to controller failover......
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We have a system which seems to hold cifs sessions indefinitely; for example, using the Microsoft MMC (shares / sessions etc) I have noticed sessions open on files from weeks / months ago, also, multiple sessions on the same files. Is this normal behaviour, if not how should this be resolved. Regards
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