Netapp cifs performance troubleshooting. Below the instruction: node run -node <node_name> pktt start The default CIFS TCP window size on the controller is 17520 bytes, but can be increased to 8387700 bytes. options cifs. Christian. Note that changing this value requires a disruptive restar Sep 29, 2010 · Hi, the vscan is anabled and you don't see any vsan entries in your messagelog ? strange. com; Support; Blog; Training; Contact; Discussions; Knowledge Base; NetApp A-Team Jun 8, 2020 · It could be outliers. Some information about our CIFS environment. As for /etc/ space. it doesn't get full yet. b. Which is a pity, because despite being 6 or so years old, the hardware is still pretty effective (as is the 9yo backup filer, though that one does struggle a bit wi Feb 27, 2011 · new to NetApp, I bought recently a FAS2020 with 12x1GB SATA HDD. Time: Tue, May 03 20:44:54 2022 -0400. Jul 6, 2020 · Sorry I was away for a couple weeks, but glad you got this resolved. based on NetApp doc) results: default mtu 9000 tcp 64240 notes xp 1m19s 1m5s 1m10s smb2 enabled xp 1m6s 1m4s 1m14s mpx 1124 . Anyway, disable vscan temporary and watching the Apr 15, 2015 · NetApp A-Team; Network and Storage Protocols cancel. Jun 8, 2020 · Alright then those stats will need to be gathered when it is stuck. LMCompatibilityLevel 1 . There are many options out there for performance benchmarking (ex. Mar 18, 2014 · Whenever I see a different speed between a windows server and a NetApp filer I first check the tcp windows size for CIFS on the NetApp. Sign-in with the email address on your NetApp account. account_mgmt_events. Apr 8, 2021 · Fri Jan 29 12:45:54 UTC [vf10@ntapn1: CIFSDispatcher: cifs. The performance manifested as slow access to our shared drive (folder browsing, opening and closing folders with large numbers of sub items), but mostly seemed to affect the VDI users, physical desktop/laptop users saw 'normal' performance. ONTAP still has to search all 18,456 folders, but it is only doing Apr 17, 2012 · we are having similar issues. Below the instruction: 😆 node run -node <node_name> pktt start e0a -i <ip_addr> -i <ip_addr> -d /etc/crash Sep 13, 2018 · CIFS performance issues on 7mode. NetApp Release 8. enable on Jun 4, 2012 · This might be of some help. To view the current setting, run the following command: Filer> options cifs. Besides that, please post a "sysconfig -r" and "aggr status -v" output for us to check if your aggr & volume layout is correctly. ONTAP reports latency is low. *. audit. Thanks, -Wei Apr 11, 2011 · We had the same performance issue with Microsoft Access file on Volume CIFS, I did a new volume dedicated for Access file only, with the parameter : vol options vol1 no_atime_update on Now it works fine, no performance problems anymore. This Resolution Guide helps you to troubleshoot data processing latency in ONTAP, using Active IQ Unified Manager or commands such as 'qos statistics volume latency show'. I've seen the poor performance in some excel sheets, where calculations are being made, inside nested files (excel which refers to another excel etc. Maximum value = 8388608 bytes (8M) We have a dual 10G LACP connection for data. Back to top Slow performance between Client and CIFS Share in ONTAP 9. Oct 21, 2016 · CIFS performance issues. You can display various statistics, including statistics about CIFS and SMB, auditing, and BranchCache hashes, to monitor performance and diagnose issues. Since this migration the performance is judged as poor at best by the users. ONTAP has to process each single entry and transmit all that associate data to the Windows client. These guides contain KBs that are logically grouped to improve the Self-Service experience for a specific topic, product, or technology. I'd expect something higher if it's freezing for a few seconds. This includes SMB/CIFS, NFS, NVMe/TCP, NVMe/FC, iSCSI, FC (FCP) and S3, and they create unified client and host access. Volume administration. check for cifs domaininfo. hello netapp community. ) but mostly on the UNIX side and only helpful for testing block or NFS. I have several CIFS problems, regarding performance, eventhough I have a very small network (80-100 clients and about 20 servers). SNMP, Syslog and emailed Alerts are used commonly. required off cifs. ANY1+ ANY2+ ANY3+ ANY4+ AVG CPU0 CPU1 CPU2 CPU3 Network Protocol Cluster Storage Raid Target Kahuna WAFL_Ex (Kahu) WAFL_XClean SM_Exempt Cifs Exempt Intr Host Ops/s CP. Steps to modify the cifs. 8 due to Procmon process This resolution guide provides guidance on troubleshooting CIFS access issues related to Authorization. round trip to your dc. 1,621 Views. 2. max_mpx 50 (try increasing this to 126, 253 or 1124) Oct 26, 2017 · BORMANN_C. We are hosting multiple CIFS-mounted filesystems and FC-attached VMFS datastores, and we are constantly seeing latency well in excess of 100 ms. Read our FAQ or get help. W2K_password_change_within 3600h . During a Wireshark network sniff, the long waiting times always come back to the following SMB Sequence: Time Operation. There are no network problems seen in packet traces. reqs:warning]: CIFS: Too many pending authentication requests detected while authenticatinig for vFiler vfiler:vf10: Check health of all DCs for every vFiler unit configured on the controller and verify their connectivity. The freeze when it happened wasn't a few seconds, it was up to a Jun 8, 2020 · 9 ms isn't bad. 99% is what u want. W2K_password_change off . 0. No issue. We could just do a basic system check. IBM abandoned their partnership with Netapp a few years ago, and support went with it. I am reaching out because I wanted to get some input on a CIFS performance issue we are experiencing from the perspective of the end user. After enabling SMB 3 encryption reduced throughput or increased latency is observed for CIFS sessions. EMS: Tue Mar 24 19:18:11 CET [CLUSTER01-A: kernel: Nblade. With it, organizations can see, understand, and manage who is using data to control data access and enforce compliance with data-usage policies. If its 80%+, your disks are the bottlenet. Which one is now My colleague Chowdary answered the following questions: What's the recommendation for tuning cifs. tcp_ window_ size? [Chowdary ] with SMB2 the size Apr 17, 2012 · Welcome! An account will enable you to access: NetApp support's essential features NetApp communities NetApp trainings Apr 17, 2012 · which version of ONTAP are you using? I think perfstat would still be useful. SIGN IN. Jun 3, 2013 · there are two ways. NetApp employees Sep 8, 2010 · Is it high all the time, or just periodically? What other purposes is the system used for? Please check the syslog, last time we had similar issue NAS storage management. pending. A global search window allows administrators to simply type in a resource name to Feb 12, 2024 · For the performance reason, you may need to increase the "cifs. Hi Pedro did you ever workout what was casing the performance issue to CIFS shares between you client PCs, the your Cisco 2960 switches and your NetApp. Jun 12, 2020 · A little more data - not the data I've been asked for, but I thought it might be interesting. cifs. This document and the information contained Issue. A few commands: priv set admin;stats start volume;priv set diag; statit -b; sysstat -c 30 -M 1; sysstat -c 30 -x 1; stats stop; statit -e That should give some outpu Notice, the Find Request above with "Pattern: *", means this will return all 18456 entries. The SVM randomly disconnects and reconnects from Vscan servers causing slow CIFS access. IOzone, fio, etc. enable to off. get the cifs stat output. By using read ahead and write behinds along with metadata caching CIFS performance can be more than quintupled Here's a performance graph from one network I just happened to have . Jul 6, 2020 · Apologies for not getting back to this sooner. Turn on suggestions Oct 1, 2010 · Welcome! An account will enable you to access: NetApp support's essential features NetApp communities NetApp trainings Sep 20, 2010 · No, the cache hit is great. This document and the information contained Jul 6, 2020 · You may check if you have any performance issue on NetApp: Diagnosing a performance issue . c. 22". Instead, it is recommended to utilize throughout (ops or bytes/second) coupled with latency instead. audit if it is enabled. Existing users: If you have not done so already, please pre-register now. It's definitely worth checking a packet trace with your network team to see if May 10, 2022 · Issue. snapmirror was off on the system. This document and the information contained Jun 13, 2013 · Hi Wei Its over a year you make following statement: with SMB2 the size is 2MB (2097152) In the TR-3869 the value is 2096560. New users: Please register. 2018-09-1312:00 PM. I think a packet trace is next step to confirm latency on the network. NAS storage management. SAN storage management. Tue Mar 24 19:18:11 CET [CLUSTER01-A: kernel: Nblade. The first results here show that you aren't using smb2. Below the instruction: 😆 node run -node <node_name> pktt start e0a -i <ip_addr> -i <ip_addr> -d /etc/crash Issue. please let me know if you need more informa The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. I configure many options on netapp but the performance is always the same. On the CIFS side, it seems the choices are slim, and even slimmer when looking at something which would drive a consisten benchmark between CIFS and NFS for a given Jun 20, 2012 · so i just setup a V3140 with ontap 8. A packet trace between the filer and the client is needed. 4P7: Fri Apr 11 00:22:07 PDT 2008 Model Name: FAS3020 #sysstat -s -u 1 CPU Total Net kB/s Disk kB/s Tape kB/s Cache Cach Oct 31, 2023 · FPolicy Auditing is a software-based solution for data-usage management. Jul 25, 2013 · Selects the object for which you want to display performance data. can u reply on my previous post, with your output? do u have snapmirror relations? Sep 8, 2010 · Thanks Susan -i have turn off the audit option. Note that changing this value requires a disruptive restart of CIFS. find cifs performance. Jun 7, 2020 · So there's the answer : CIFS performance problems, worth checking the network, including at the switch end, because the underlying network problems won't show on the netapp itself. Hello, on our old Metro Cluster we set following options to optimize performance with Microsoft Access Databases and large Excel files: options cifs. Minimum value = 1600 bytes. This parameter is required if you specify the -object parameter and enter any object other. Resolution Guides are high-value content, created by technical experts, based on analysis of content usage patterns. NetApp provides no representations or warranties regarding the accuracy Apr 23, 2010 · 2010-04-22 05:59 PM. Sign in to view the entire content of this KB article. the cifs latency is low. Network management. The guides cover Technical Topics/Concepts related to a common theme Jun 9, 2020 · You may check if you have any performance issue on NetApp: Diagnosing a performance issue . feedback:feedback-processed. tcp_window_size. On NMC , go to Monitor->client statistics-->choose the controller of interest from the HOST list-->click client statistics for the time period of Interest. Emailed Alerts allow users to quickly click and launch to the impacted resources within OCI. This document and the information contained Jun 8, 2020 · Welcome! An account will enable you to access: NetApp support's essential features NetApp communities NetApp trainings Jun 4, 2013 · My problem is betwen client windows and netapp CIFS. but even when the system isn't used heavily we still can't seem to pass the 30MB/s mark. 2017-10-26 02:06 AM. SharingViolationDelay 0. Auditing assists in addressing the growing need for regulating data usage within organizations, enabling full visibility and Oct 1, 2010 · Hi, I came to know that there are other activities are fired at the same time like Snapmirror, Dedupe, SQL backup. troubleshooting guides. get a netapp performance engineer to review our perfstat. i have put the output of below command #sysstat -x 1 #sysconfig -r #aggr status -v #options cifs #cifs stat 10 the filer only run nfs and cifs. If I create a LUN on the same disks as the CIFS volume on each controller, it seems to perform at the same speed on both. Is there a reason why it was set to on, as the default setting is off? This option logs all the cifs access from Windows clients on the controller. Review of qos statistics volume latency show command shows majority of Dec 27, 2023 · The SVM randomly disconnects and reconnects from Vscan servers causing slow CIFS access. roud trip to your vscan or fpolicy server. Hi. permission. Security and data encryption. JEARLY_1616. After migrating to cDot our users have performance problems again. each LUN is 2TB (1952GB for HDS. May 6, 2024 · This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document. sysstat -M 1. signing. 00 NT Create AndX Request, Path:\path\to\our\database. Do need to increase cache or what? BTW, the version version NetApp Release 7. Authentication and access control. Also you can open a technical case with the support team for further troubleshooting. Kind regards T Jun 20, 2012 · thats a good checklist but based on what i have seen CIFS in general isn't a fast protocol Aug 15, 2011 · Have you done any testing to verify that your NIC is configured properly? Depending on what type of NIC you are using (PCI vs onboard) that could be Sep 20, 2010 · Hi All, i look at the I/O, looks OK. many. no_atime_update on. May 16, 2024 · NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. Dynamic Home Directories simplify this and ONTAP only returns the single user's folder. Some or all of the following symptoms may be present when performance issues are related to ABE: ABE is enabled on one or more CIFS shares (this absolutely must be present) Very high latency on CIFS shares with ABE enabled, potentially hundreds of milliseconds. Performance Troubleshooting in OCI can be approached in multiple ways. The end user environment is predominently Mac with just a The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. max_map value from the storage system: Terminate CIFS: cifs terminate. please refer to the attachment for all the info. Sep 10, 2010 · Could you please send us the output of options cifs further more cifs stat would be nice. cheers, clive Jun 9, 2020 · You may check if you have any performance issue on NetApp: Diagnosing a performance issue Also you can open a technical case with the support team for further troubleshooting. auth. 10. 2. If you have a clustered system, check it's partner and turn off cifs. Severity: ALERT. try: cifs. I found it over here: Checklist for troubleshooting CIFS issues • Use "sysstat –x 1" to determine how many CIFS ops/s and how much CPU is being utilized • Check /etc/messages for any abnormal messages, especially for oplock break timeouts • Use "perfstat" to gather data Sep 10, 2010 · Hi there, run a "sysstat -x 1" and check for "disk util", it shows the highest utilization a single disks has. You can improve the performance of NFSv3 and NFSv4 clients connecting to storage systems over a high-latency network by modifying the TCP maximum transfer size. Nov 9, 2009 · The access database resides on a netapp cifs volume now. I have inherited some NetApp filers with a mixture of CIFS and NFS exports and this morning I received some complaints about performance issues when copying files from multiple windows hosts to the CIFS shares. Jun 9, 2020 · NetApp. This assumes valid authentication has occurred. Als May 18, 2011 · Hello there, I have seen some horrendous performance with CIFS and filers and am currently still trying to nail down an issue where an lacp vif has 15Mb/s to some servers while a multimode works fine, doesnt help load balancing at all. You'll see NetApp / CIFS see the hi Jun 8, 2020 · Those stats weren't gathered while it was stuck, it's still working at the moment. ldb. a. As mentioned in the Overview, NetApp storage controllers provide a truly unified architecture that supports file, block, and object protocols. This document and the information contained This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document. I'm trying to think how we could check. 1071815. For more information on how to force the Windows 2000/XP client to use larger window sizes, refer to CIFS TCP Window size is limited to 64240 bytes Oct 21, 2016 · CIFS performance issues. Like taking updwards of 10 minutes to open a folder in some cases. 2016-10-21 03:20 AM. . Jun 13, 2023 · The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. New to NetApp? Learn more about our award-winning Support. There are no recommended articles. One thing to check (if you can) is change the mode if you are u Cluster administration. It seems that maximum speeds being seen are around 30MBps which is causing some teams Yes, we have a long running performance case at a P3, and we opened a P1 when we lost CIFS (which turned out to be the pblk exhaustion). Jun 14, 2013 · Welcome! An account will enable you to access: NetApp support's essential features NetApp communities NetApp trainings May 4, 2012 · Currently we do not have this feature supported to identify specific share using PA, given that one can identify the clients ( CIFS/NFS) who is causing performance degradation on the controller. Slow performance is seen in Java. 1P1 config: root vol is on its on RG 2+1 (raid 5) sas drives aggr1 has 5 LUNs from a 20+2 (raid6) sas RG. 4, you can configure SMB Multichannel to provide multiple connections between ONTAP and clients in a single SMB session. Sep 13, 2018 · Default value = 17520 bytes. The new cifs stat output looks more like you are using smb2. Jun 5, 2013 · Hi, It's still all a bit confusing because you are not specific enough about which Netapp you have sent results for. than "cluster". When this happened in the past, we were able to CIFS user performance may be impacted due to a 5 second delay authentication protection introduced by BUG 149707; A misbehaving client may be injecting failed authentication requests midstream of real CIFS\SMB workload for the same session. Try to limit your posts to a minimum of relevant information and Apr 23, 2024 · This resolution guide provides guidance on troubleshooting CIFS access issues related to Authorization. ) Jun 9, 2020 · Does IBM not have an active contract? Just curious. my options configurations is: cifs. d. 1. -Is Sep 21, 2010 · thanks for the explanations. But, the cache hit is 99%. SMB signing is enabled and this message is seen: Node: FAS2554-01. 5 7-Mode: Wed Jul 19 03:55:53 PDT 2017. right now, i'm monitoring the result. CIFS or NFS rename operations on a FlexGroup may experience a performance impact; qos statistics volume latency show command shows majority of latency in data column Sep 27, 2010 · It is important to remember that CPU utilization on a NetApp storage controller is not a "first-order" metric for performance analysis. The high cpu usage is a big concern. Dec 27, 2023 · The SVM randomly disconnects and reconnects from Vscan servers causing slow CIFS access. The following output is displayed by only by enabling options cifs. max_mpx" to 1124 while using the storage system with a Windows Terminal Server (WTS). Thanks Andrew. 5 minutes is long enough to confirm if there is a latency issue. 1P1 7-Mode. smb2. There are many "internal" operations (such as snapshot creation Mar 24, 2014 · Kind Regards. Note: Before taking the max_mpx up to 1124, it is recommended to check the current max_mpx. Regards Sep 7, 2010 · I would suggest that you set cifs. If I snapmirror to a second netapp (we've got an old FAS3250 too, also unsupport Mar 8, 2012 · Hi, everyone, I am trying to identify the source of the performance issues currently crippling our V3160. The default object is "cluster". Jun 8, 2020 · It's now slowed down a bit - not frozen, but still not shovelling data that quickly (total 125Mb/s or so) cifs:cifs:instance_name:cifs Issue. Selects the instance for which you want to display performance data. Beginning with ONTAP 9. You might try disabling vscan or fpolicy as a test, but without a support case/perfstat I can't really tell more. The default value for the NetApp is only 17520 and for the windows servers and windows 7 clients 2096560. 1. NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. SharingViolationRetries 0. Apr 25, 2024 · NetApp storage and Windows Server environment. The password will be either (a) a One Time Passcode (OTP) that will be sent to your email address, or (b) your password to your organization. com; Support; Blog; Training; Contact; Discussions; Knowledge Base; NetApp A-Team Jun 8, 2020 · NetApp. vscanConnInactive:notice]: For Vserver "SVM02", ONTAP(R) forcibly closed the vscan connection originated from the nonresponsive AV server "10. com Support Mar 18, 2014 · Whenever I see a different speed between a windows server and a NetApp filer I first check the tcp windows size for CIFS on the NetApp. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. aggregate 26 Disks (24 Data Disks) mirrored. trace_login on command: NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The filer is an FAS8020. OCI has a number of alerting methods possible. It seems that maximum speeds being seen are around 30MBps which is causing some teams Jun 13, 2013 · Welcome! An account will enable you to access: NetApp support's essential features NetApp communities NetApp trainings Jun 20, 2012 · CIFS has a number of problems, but chattiness has to be the biggest issue by far. . i sent a perfstat in the past and they said everything looks good. Example: In the below log, a 41 ms delay is seen between validating the authentication then the client connection being accepted. -instance <text> - Instance. The KB helps you identify the cause for access being denied to a file or folder attempting to be accessed through CIFS SMB protocol and provides the troubleshooting solutions for this issue. FAS3270 ONATP 8. S3 object storage management. W2K_password_change_interval 4w . aa me le jn gx bi sd du md hb