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13513 discussions

Berk Comm...
by Jeffrey Mohler 28 Apr '15

28 Apr '15

Is there a primary contact for BerkComm on toasters? If there is..Email me separately please. :) _________________________________Jeff MohlerTech Yahoo, Storage Architect, Principal(831)454-6712TW: @PrincipalYahooYM: Supra89ta

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cDOT cluster kernel-service
by Weber, Mark A 28 Apr '15

28 Apr '15

Anyone have a 4-node 2240 cluster running 8.2.x? If so, could you tell me if failover says enabled or disabled when you do a "cluster kernel-service show" in diag mode. I've had a performance case open for months on this cluster and I noticed recently that this cluster says failover is disabled but our 4 node 3220 cluster says enabled. LCNA2::> set d Warning: These diagnostic commands are for use by NetApp personnel only. Do you want to continue? {y|n}: y LCNA2::*> cluster kernel-service show Node State Ver Failover Dump FSM-State ---------- -------- ---- --------- --------- --------- LCNA2-01 enabled 1 disabled enabled CLAM_CORE_ST_NONMASTER_WAITING_FOR_BACKOFF_TIMEOUT LCNA2-02 enabled 1 disabled enabled CLAM_CORE_ST_NONMASTER_WAITING_FOR_BACKOFF_TIMEOUT LCNA2-03 enabled 1 disabled enabled CLAM_CORE_ST_MASTER_WAITING_FOR_HB_TIMEOUT LCNA2-04 enabled 1 disabled enabled CLAM_CORE_ST_NONMASTER_WAITING_FOR_BACKOFF_TIMEOUT 4 entries were displayed. Thanks mark

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Re: Adding DS2246 to FAS2240-2 with existing DS4243
by Francis Kim 28 Apr '15

28 Apr '15

Just be sure to document your cabling carefully, so someone how comes after you down the road, including yourself, to add another shelf will know that your latest DS2246 in your stack is really next-to-the-last in cabling terms. Don’t expect cabling to look pretty after you insert your shelf into the middle of the stack. I’ve recently had ACP housekeeping complain about missing IOMs, even though cabling was all correct after the shelf addition. If disabling and reenabling ACP and cable pull/inserts don’t clear it, you might have to actually pull the IOM and reseat it. All non-disruptive operations as long as you start out from Multipath HA state. Francis Kim | Engineer 510-644-1599 x334 | fkim(a)berkcom.com<mailto:fkim@berkcom.com> BerkCom | www.berkcom.com<http://www.berkcom.com/> NetApp | Cisco | Supermicro | Brocade | VMware On Apr 27, 2015, at 2:09 PM, Aaron Lewis <aaron(a)ivoxy.com<mailto:aaron@ivoxy.com>> wrote: Thanks, Francis. I’ve done a lot of shelf adds, but never inserted into an existing stack. So, I was looking for confirmation from the group. I knew the DL was the quickest way to get an answer that I could trust. Cheers, Aaron From: Francis Kim Date: Monday, April 27, 2015 at 2:04 PM To: Aaron Lewis Cc: "toasters(a)teaparty.net<mailto:toasters@teaparty.net>" Subject: Re: Adding DS2246 to FAS2240-2 with existing DS4243 Yes, you can absolutely hot-add the new DS2246 into your disk stack to get to the configuration you want. The only thing to be careful is to maintain at least a single path at all times. If you want details, I can send you the decabling and recabling sequence for your stack. Francis Kim | Engineer 510-644-1599 x334 | fkim(a)berkcom.com<mailto:fkim@berkcom.com> BerkCom | www.berkcom.com<http://www.berkcom.com/> NetApp | Cisco | Supermicro | Brocade | VMware On Apr 27, 2015, at 1:45 PM, Aaron Lewis <aaron(a)ivoxy.com<mailto:aaron@ivoxy.com>> wrote: Hi all, I have a FAS2240-2 with the following configuration: Existing Stack: 1. DS2246 disk shelf (internal) 2. DS2246 disk shelf (external) 3. DS4243 disk shelf I need to add a new DS2246 to this system and want to maintain the single transition between 6G and 3G so it looks like this: Existing Stack: 1. DS2246 disk shelf (internal) 2. DS2246 disk shelf (external) 3. NEW DS2246 4. DS4243 disk shelf Is it possible to hot-add the DS2246 into the existing stack? The Installation Guide gives the process for adding it to the bottom of the stack, but doesn't explicitly prohibit inserting the shelf and it seems like you could with Multipath HA. Thanks, Aaron _______________________________________________ Toasters mailing list Toasters(a)teaparty.net<mailto:Toasters@teaparty.net> http://www.teaparty.net/mailman/listinfo/toasters

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Adding DS2246 to FAS2240-2 with existing DS4243
by Aaron Lewis 27 Apr '15

27 Apr '15

Hi all, I have a FAS2240-2 with the following configuration: Existing Stack: 1. DS2246 disk shelf (internal) 2. DS2246 disk shelf (external) 3. DS4243 disk shelf I need to add a new DS2246 to this system and want to maintain the single transition between 6G and 3G so it looks like this: Existing Stack: 1. DS2246 disk shelf (internal) 2. DS2246 disk shelf (external) 3. NEW DS2246 4. DS4243 disk shelf Is it possible to hot-add the DS2246 into the existing stack? The Installation Guide gives the process for adding it to the bottom of the stack, but doesn't explicitly prohibit inserting the shelf and it seems like you could with Multipath HA. Thanks, Aaron

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cDOT provisioning strategy
by Momonth 24 Apr '15

24 Apr '15

Hi, We are (finally) getting close to go live with cDOT clusters. I know some of you guys are already "happy customers" and I would like to hear your thoughts on the following: 1. SAN: Create one SVM per physical node? Or multiple SVMs per node and then combine LUNs, that belong to a certain application, on a single SVM? 2. NAS: pretty much the same questions, pros and cons of having multiple SVMs. What are your criteria when you decide to spin up a new SVM? SVM conception seems to give quite some flexibility, but I can't get my head around as to when / how to apply this flexibility. I've never used vfilers in 7-Mode world. Cheers, Vladimir

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Extra Protection for Certain Datasets
by Ray Van Dolson 23 Apr '15

23 Apr '15

Hi everyone; Thinking about how to protect certain datasets (NAS shares) with additional authentication requirements -- probably two-factor authentication. Am thinking this could be achieved via a "second" Active Directory domain which requires the two factor auth (tokens, etc.) and then a vFiler which attaches to this domain and houses the data. I'm fairly certain there's no clever way to stick with a single domain and configure only certain datasets to require additional auth? Thinking CIFS, but presumably kerberized NFSv4 could also work here. Ray

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what in the world happend to performance (dfm) advisor with CDOT
by Iluhes 23 Apr '15

23 Apr '15

What happened? Where are all the performance graphs, they are all gone.Did the tool get killed? The performance manager is almost empty

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Encryption Questions
by Ray Van Dolson 17 Apr '15

17 Apr '15

Hi all -- for those of you doing encryption (on NetApp or another platform): What are you using for Key Management? SafeNet? IBM's KMS? Something else? Do you find yourselves purchasing self-encrypting drives *only* for datasets you're sure need it vs. creating a catch-all location where mixed data lives but at lesat you can say that it's "all encrypted at rest"? The approach here can obviously impact costs... Thanks, Ray

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Excessive Flow Control Frames?
by Philbert Rupkins 17 Apr '15

17 Apr '15

Toasters, We have ethernet flow control set to full on our NetApp's 10g interfaces. The FEX ports to which our 10g interfaces are connected also have flow control TX/RX enabled. I realize enabling flow control is against best practices. I am trying to determine if we are seeing an excessive number of flow control frames. We received over 12,000 PAUSE frames from the FEX within a 10 minute period which sounds excessive to me. Can anybody confirm that 12,000 is an excessive number of PAUSE frames that would likely result in connectivity issues? Here are statistics for one of our 10g interfaces during a recent 10 minute interval. Notice that the NetApp is receiving PAUSE frames (RECEIVE-Xoff) from the FEX and never transmitting (TRANSMIT-Xoff). RECEIVE Jabber: 0 | Bus overruns: 0 | Xon: 12412 Xoff: 12412 | Jumbo: 0 TRANSMIT Queue overflows: 0 | No buffers: 0 | Xon: 0 Xoff: 0 | Jumbo: 0 | TSO non-TCP drop: 0 What I see is the FEX telling the NetApp to slow down. I just dont know if the FEX is slowing down the NetApp enough that it would cause problems. Have a great day, Phil

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Firing up an old F760...
by Jeffrey Mohler 15 Apr '15

15 Apr '15

This could be fun...and old F760 with say, 4 shelves of 36G drives.. Replace the NVRAM battery, check power supplies for leaking capacitor oil...reseat cards and DIMMS... What're the odds it'll work, and any other fire-prevention steps to take? :) -Cheers _________________________________Jeff MohlerTech Yahoo, Storage Architect, Principal(831)454-6712TW: @PrincipalYahooYM: Supra89ta

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