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13513 discussions

DFM and SnapVault
by Eric Peng 15 Sep '15

15 Sep '15

I am hard pressed to find good documentation on this.. Has anyone had success in setting up SnapVault relationships in DFM so they can be more easily managed and alerted on? Found some forum postings that seemed to suggest that SnapVault relationships could be created in OnCommand System Manager or CLI and then "imported" into DFM, but so far have not had any luck in getting DFM to detect these so called "external relationships".. =( Am using the IBM version of DFM (version 5.1) by the way. Any helpful links or suggestions on this would be appreciated. Thanks, Eric Peng | Systems Administrator Esri | 380 New York St. | Redlands, CA 92373 | USA T 909 793 2853 x3567 | M 909 367 1691 epeng(a)esri.com<mailto:epeng@esri.com> | esri.com<http://esri.com/>

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Qtree exporting
by Fred Grieco 02 Sep '15

02 Sep '15

I'm transitioning a volume with a qtree in it from 7 Mode to c mode. I have the volume replicated and the cluster sees the qtree. Is there a way to nfs export that /vol/qtree qtree as "/qtree?" I don't see any way to actually mount a qtree into the namespace. I can make an export policy on a qtree, but that just creates alternate permissions. You can do this on the CIFS side... Looks like I can share anything as anything. This is 8.2.3 cmode ontap. Tia, Fred

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DFS referrals and 7TT?
by Basil 01 Sep '15

01 Sep '15

I just discovered automatic node referrals <https://library.netapp.com/ecmdocs/ECMP1366834/html/GUID-0A5772A4-A6D7-4A00…> and I was wondering: could this be used to migrate CIFS workloads from 7-mode to CDOT in a more granular way than the current 7TT? Right now, if I transition a subproject in 7TT, it finishes by removing the IP address from the 7-mode box. This is sensible, because if it didn't, there would be a collision. This is a problem for me because I am unlikely to be able to find a common outage window for the hundreds of applications that use this IP address for file repositories. Right now, my plan is to schedule an omnibus outage window, and anyone who can't live with that will be welcome to migrate manually ahead of time. Based on my understanding of how automatic node referrals use DFS referrals, shouldn't it be possible to use this within 7TT? Basically, I am imagining a scenario where a share migration to a CDOT SVM would look like: -snapmirror volume to CDOT -disconnect clients -final sync -restart share on 7-mode, but now all SMB session requests get DFS redirected to the LIF on CDOT When all data on 7-mode is migrated, the IP address would be added to the CDOT SVM and the redirection could be stopped (or turned into an automatic node referral setup). Basil

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cifs_other_ops and cifs_ops
by Rhodes, Richard L. 01 Sep '15

01 Sep '15

I'm looking at the Performance Manager graph for a volume that is a CIFS share. It graph has 4 stats: cifs_read_ops, cifs_write_ops, cifs_other_ops, cifs_ops. CIfs_reads_ops and Cifs_write_ops are VERY few totaling only 0-30/sec, but mostly at 0. Cifs_other_ops is a constant 130/s to 180/s, but NEVER dropping below a floor of 130/s. Cifs_ops is similar to Cifs_other_ops, but somewhat higher. The help metrics don't exactly help explain these. Q) What is cifs_other_ops and cifs_ops? Q) What would a CIFS client be doing to cause few reads/writes, but lots of cifs_other_ops and cifs_ops? For example, at one point I have these values: cifs_read_ops 3 cifs_write_ops 28 cifs_other_ops 135 cifs_ops 160 Thanks Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.

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RE: Questions about Cert CAs with software updates in CDOT
by Vanderyt, Jeff 28 Aug '15

28 Aug '15

We use http to do the software loads. We use one of OnCommand servers we have, which have self-signed certs. We temporarily disable https, and pull the code onto the controllers: system node image get–node *–package http://x.x.x.x:8080/ontap/image_name This has worked for through going from 8.1 and up to 8.2.3P3. ********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues

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Questions about Cert CAs with software updates in CDOT
by Tony Bar 28 Aug '15

28 Aug '15

Toasters - This is a new one to me, but I'm sure my customer here isn't the only one out there who issues self-signed certs with custom names. Has anyone else run into this before and if so, what did you have to do to resolve? We've tried doing a symlink from her cert to the expected name/path but that doesn't help. Is there perhaps a hidden option like "-k -O" in Unix application "curl" or an alternate method for downloading the updates? Output of what I'm seeing below, any help would be appreciated: <clustername>::> system node image update -node <cluster>-01 -package https://<webhost>/util/83P2_q_image.tgz<https://monitor1.sjc1.prod.ce/util/83P2_q_image.tgz> -replace-package true Install Failed. Failed to download package from https://<webhost>/util/83P2_q_image.tgz<https://monitor1.sjc1.prod.ce/util/83P2_q_image.tgz>. Error: Problem with the SSL CA cert (path? access rights?) : error setting certificate verify locations: CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none Error: command failed: Install Failed. Failed to download package from https://<webhost>/util/83P2_q_image.tgz<https://monitor1.sjc1.prod.ce/util/83P2_q_image.tgz>. Error: Problem with the SSL CA cert (path? access rights?) : error setting certificate verify locations: CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none We do not have access to FTP or TFTP options, the customer is a financial services company so their network is pretty locked down without many (if any) options to work with. Thanks again! Anthony Bar tbar(a)berkcom.com<mailto:tbar@berkcom.com> (650) 207-5368 www.berkcom.com<http://www.berkcom.com/>

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cDOT: CN1610 interconnehct switch monitoring
by Momonth 28 Aug '15

28 Aug '15

Hi, I wonder what you guys employ for cDOT interconnect switches monitoring? I assume SNMP is the way to go, maybe you can share some scripts with this community? Cheers, Vladimir

1 0

Deswizzle
by Mike Michalakis 25 Aug '15

25 Aug '15

Hi I have a storage system that is under stress, and as luck has it I need to added more stress by loading it with a large cifs related volume, this is a transition from a 7-Mode ontap system Every time we complete the transition, the system spikes disks 100%, cpu 100%, etc. On the perfstat we see deswizzling running. This is a normal operation every time a snapmirror break-off occurs, that is the deswizzle part of the equation.. When we take this volume offline, operations go back to normal. My question, what is the result of disabling deswizzle is the short term, do I look functionality, e.g. vol move? To turn off deswizzle: Nodeshell*> options wafl.deswizzle.enable off To turn on deswizzle: Nodeshell*> options wafl.deswizzle.enable on Backround: FAS3210, C-Dot 8.2.3, SAS disks

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RBAC - Capabilities
by Philbert Rupkins 25 Aug '15

25 Aug '15

Hello Toasters, The DATA ONTAP documentation notes the following in regard to "cli" related capabilities: ---begin doc----- cli-* grants the specified role the capability to execute all supported CLI commands. cli- cmd* grants the specified role the capability to execute all commands associated with the CLI command cmd. For example, the following command grants the specified role the capability to execute all vol commands: useradmin role modify status_gatherer -a cli-vol* ------end doc---- Based on this info, I know that granting cli-vol* grant the role the capability to execute all commands associated with the CLI command vol. I found another KB article that instructs me to grant the cli-vol (no asterisk) capability to a role. Is there a difference between "cli-vol" and "cli-vol*" ? Thanks, Phil

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Checksums for array LUNs
by Basil 22 Aug '15

22 Aug '15

Does anyone have any advice regarding checksums for array LUNs? My understanding is that AZCS saves you about 12% capacity but requires more filer CPU utilization for reads. What kind of impact does it have?

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