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13520 discussions

Identify a heavy CIFS hitter on a vfiler?
by Randy Rue 06 Aug '12

06 Aug '12

Hello All, Got a v3170 cluster running 7.3.5.1 where one vfiler is seeing heavy CIFS traffic sufficient to drag the whole node to its knees periodically. Is there a way to identify the files/folders or CIFS clients that are doing the damage? Hope to hear from you ASAP, Randy Rue

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How many retries on a disk before you pre-fail?
by Fletcher Cocquyt 04 Aug '12

04 Aug '12

I ran a syslog search for "retry" on this 3270 head for the last 7 days to get these disk retry messages: Aug 3 20:55:29 [na04:scsi.cmd.retrySuccess:debug]: Enclosure services device 3a.03.99: request successful after retry #1/#0: cdb 0x3c (1301). then get a frequency count to find chronic retry disks. awk '{print $12}' irt-na04.retry | sort | uniq -c | sort -nr 15 3a.06.99: 14 3a.05.99: 13 3a.03.99: 11 3a.04.99: 10 3a.02.99: 10 3a.01.99: 9 3c.00.99: 7 0a.08.99: 6 0a.07.99: 4 3a.08.99: 3 3a.07.99: 3 0b.00.99: 3 0a.05.99: 3 0a.03.99: 2 0a.06.99: 2 0a.04.99: 1 0a.02.99: 1 0a.01.99: Q: what level of retries should we look at pre failing a disk and replacing it proactively? Will the retries cause performance issues if ignored? thanks, Fletcher

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shrinking volumes on 8.1?
by Randy Rue 01 Aug '12

01 Aug '12

What factors do I need to consider when resizing a volume downward? Will I always be able to shrink an over provisioned volume down to near the size used or do I need to worry about fragmentation or the WAFL equivalent? I ask because we've been using thin provisioning on a new filer in cases where we sense the customer might be overestimating their need (I know we're the only shop where this happens). But now that filer is about half full and we'd rather not need to stress over whether it's oversubscribed if we could just make it all Thick and reclaim any hoarded space when we need to.

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LDAP Options
by Steffen Knauf 01 Aug '12

01 Aug '12

Hi, i try to configure our Filer to an LDAP Server (Windows 2008 R2), without Success. Perhaps you have some ideas what's wrong ---------------------------------------------------------------------------- ------------ ldap.ADdomain dc2.ad.cxo.name dc1.ad.cxo.name ldap.base dc=ad,dc=cxo,dc=name ldap.base.group ldap.base.netgroup ldap.base.passwd ldap.enable on ldap.minimum_bind_level anonymous ldap.name CN=Administrator,CN=Users,DC=ad,DC=cxo,DC=name ldap.nssmap.attribute.gecos gecos ldap.nssmap.attribute.gidNumber gidNumber ldap.nssmap.attribute.groupname cn ldap.nssmap.attribute.homeDirectory homeDirectory ldap.nssmap.attribute.loginShell loginShell ldap.nssmap.attribute.memberNisNetgroup memberNisNetgroup ldap.nssmap.attribute.memberUid memberUid ldap.nssmap.attribute.netgroupname cn ldap.nssmap.attribute.nisNetgroupTriple nisNetgroupTriple ldap.nssmap.attribute.uid uid ldap.nssmap.attribute.uidNumber uidNumber ldap.nssmap.attribute.userPassword userPassword ldap.nssmap.objectClass.nisNetgroup nisNetgroup ldap.nssmap.objectClass.posixAccount sAMAccountName ldap.nssmap.objectClass.posixGroup Group ldap.passwd ****** ldap.port 389 ldap.servers ldap.servers.preferred ldap.ssl.enable off ldap.timeout 20 ldap.usermap.attribute.unixaccount sAMAccountName ldap.usermap.attribute.windowsaccount sAMAccountName ldap.usermap.base ldap.usermap.enable on ---------------------------------------------------------------------------- ------------ I get the following error messages: ---------------------------------------------------------------------------- ------------ Mon Jul 30 13:58:06 CEST [chip1: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- Starting AD LDAP server address discovery for DC2.AD.CXO.NAME. Mon Jul 30 13:58:06 CEST [chip1: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- Found no AD LDAP server addresses using DNS site query (muc). Mon Jul 30 13:58:06 CEST [chip1: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- Found no AD LDAP server addresses using generic DNS query. Mon Jul 30 13:58:06 CEST [chip1: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- AD LDAP server address discovery for DC2.AD.CXO.NAME complete. 0 unique addresses found ---------------------------------------------------------------------------- ------------ Testing: ---------------------------------------------------------------------------- ------------ chip1*> getXXbyYY getpwbyname_r sknauf Could not get passwd entry for name = sknauf chip1*> wcc -u adcxo/sknauf no passwd entry for adcxo/sknauf ---------------------------------------------------------------------------- ------------ nsswitch.conf : ---------------------------------------------------------------------------- ------------ chip1*> rdfile /etc/nsswitch.conf #Auto-generated by LDAP Mon Jul 30 10:42:32 CEST 2012 hosts: files nis dns passwd: files ldap netgroup: files ldap group: files ldap shadow: files ldap nis ---------------------------------------------------------------------------- ------------ Ping: ---------------------------------------------------------------------------- ------------ chip1*> ping dc2.ad.cxo.name dc2.ad.cxo.name is alive chip1*> ping dc2 dc2.ad.cxo.name is alive ---------------------------------------------------------------------------- ------------ Thanks & greets Steffen

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Ontap 8.1 performance issue
by Alon Zeltser 29 Jul '12

29 Jul '12

-------- Original message -------- Subject:RE: Ontap 8.1 performance issue From:Alon Zeltser <alonz(a)emet.co.il> To:"Klise, Steve" <klises(a)sutterhealth.org> Cc: Yes this include p1 according to netapp support this should be fixed at p2 schedule to be released at end of the month Sent from Samsung Mobile"Klise, Steve" <klises(a)sutterhealth.org> wrote: Was this noticed also on 8.1p1? Looks like there were some good fixes in the p release. Thanks in advance. From: toasters-bounces(a)teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Alon Zeltser Sent: Thursday, July 26, 2012 11:01 AM To: toasters(a)teaparty.net Subject: Ontap 8.1 performance issue Hi all As a netapp ASP I spent quite alot of my time installing netapp's at costumers site and resolving their issues and I wanted to share my recent experience with 8.1 Usually I try to avoid RC release but until recently the fas22xx didn't gave us much choice Once the 8.1 GA released I felt more free to install this release. but after I started to get performance complains from my costumers I wasn't so sure After investigating some of the complains I felt that they are justified something is off in system I can't put my finger on it but its looks the system don't perform as expected even though the system don't look busy. After opening support cases at netapp one of the engineers told me that they also gets alot of performance cases with this release an even though he can't find a bug that feets with our logs and perfstat he recommend upgrade to 8.1.1rc1 Following his advise after upgrade I saw major performance improvment I mean throughput went up from 70-80 MB/s to 250-300 MB/s and latency also went down The same result occurred on more then one 8.1 system after upgrade to 8.1.1rc1 I saw at least 50% improvment in throughput Today on new system I install I completely skip th GA version an go straight to 8.1.1rc1 So my advice if you on this release and suffering from performance and don't know if you have enough disks or the right controller upgrade first then check Sent from Samsung Mobile

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Re: Ontap 8.1 performance issue
by Alon Zeltser 27 Jul '12

27 Jul '12

Sorry I forgot to mention that the issues only noticed on 7-mode I don't know if it relevant to C-mode Sent from Samsung Mobiletmac <tmacmd(a)gmail.com> wrote: really? i am running a mixed mode (2 nodes at 8.1P1 and 2 nodes at 8.1.1RC1) I do not see anything wrong. What did you see specifically? --tmac Tim McCarthy Principal Consultant RedHat Certified Engineer 804006984323821 (RHEL4) 805007643429572 (RHEL5) On Fri, Jul 27, 2012 at 6:00 AM, Darren Sykes <Darren.Sykes(a)csr.com> wrote: > As a word of warning, we attempted to upgrade our C mode cluster from > 8.1 to 8.1.1RC1 but ended up rolling back after the storage simply didn’t > behave correctly for NFS clients. **** > > ** ** > > ** ** > > ** ** > > *From:* toasters-bounces(a)teaparty.net [mailto: > toasters-bounces(a)teaparty.net] *On Behalf Of *tmac > *Sent:* 26 July 2012 22:00 > *To:* alonz > *Cc:* toasters(a)teaparty.net > *Subject:* Re: Ontap 8.1 performance issue**** > > ** ** > > Looks like 8.1P2 was just released in the last 24 hours..**** > > On Jul 26, 2012 4:47 PM, "Alon Zeltser" <alonz(a)emet.co.il> wrote:**** > > > > -------- Original message -------- > Subject:RE: Ontap 8.1 performance issue > From:Alon Zeltser <alonz(a)emet.co.il> > To:"Klise, Steve" <klises(a)sutterhealth.org> > Cc: > > > > Yes this include p1 according to netapp support this should be fixed at > p2 schedule to be released at end of the month > > > Sent from Samsung Mobile"Klise, Steve" <klises(a)sutterhealth.org> wrote: > > Was this noticed also on 8.1p1? Looks like there were some good fixes in > the p release. > > Thanks in advance. > > From: toasters-bounces(a)teaparty.net [mailto:toasters-bounces@teaparty.net] > On Behalf Of Alon Zeltser > Sent: Thursday, July 26, 2012 11:01 AM > To: toasters(a)teaparty.net > Subject: Ontap 8.1 performance issue > > > Hi all > As a netapp ASP I spent quite alot of my time installing netapp's at > costumers site and resolving their issues and I wanted to share my recent > experience with 8.1 > Usually I try to avoid RC release but until recently the fas22xx didn't > gave us much choice > Once the 8.1 GA released I felt more free to install this release. > but after I started to get performance complains from my costumers I > wasn't so sure > After investigating some of the complains I felt that they are justified > something is off in system > I can't put my finger on it but its looks the system don't perform as > expected even though the system don't look busy. > After opening support cases at netapp one of the engineers told me that > they also gets alot of performance cases with this release an even though > he can't find a bug that feets with our logs and perfstat he recommend > upgrade to 8.1.1rc1 > Following his advise after upgrade I saw major performance improvment I > mean throughput went up from 70-80 MB/s to 250-300 MB/s and latency also > went down > The same result occurred on more then one 8.1 system after upgrade to > 8.1.1rc1 I saw at least 50% improvment in throughput > Today on new system I install I completely skip th GA version an go > straight to 8.1.1rc1 > So my advice if you on this release and suffering from performance and > don't know if you have enough disks or the right controller upgrade first > then check > > > > > Sent from Samsung Mobile > > _______________________________________________ > Toasters mailing list > Toasters(a)teaparty.net > http://www.teaparty.net/mailman/listinfo/toasters**** > > ** ** > > To report this email as spam click here<https://www.mailcontrol.com/sr/wQw0zmjPoHdJTZGyOCrrhg==> > .**** > > > Member of the CSR plc group of companies. CSR plc registered in England > and Wales, registered number 4187346, registered office Churchill House, > Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom > More information can be found at www.csr.com. Follow CSR on Twitter at > http://twitter.com/CSR_PLC and read our blog at www.csr.com/blog >

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Ontap 8.1 performance issue
by Alon Zeltser 26 Jul '12

26 Jul '12

Hi all As a netapp ASP I spent quite alot of my time installing netapp's at costumers site and resolving their issues and I wanted to share my recent experience with 8.1 Usually I try to avoid RC release but until recently the fas22xx didn't gave us much choice Once the 8.1 GA released I felt more free to install this release. but after I started to get performance complains from my costumers I wasn't so sure After investigating some of the complains I felt that they are justified something is off in system I can't put my finger on it but its looks the system don't perform as expected even though the system don't look busy. After opening support cases at netapp one of the engineers told me that they also gets alot of performance cases with this release an even though he can't find a bug that feets with our logs and perfstat he recommend upgrade to 8.1.1rc1 Following his advise after upgrade I saw major performance improvment I mean throughput went up from 70-80 MB/s to 250-300 MB/s and latency also went down The same result occurred on more then one 8.1 system after upgrade to 8.1.1rc1 I saw at least 50% improvment in throughput Today on new system I install I completely skip th GA version an go straight to 8.1.1rc1 So my advice if you on this release and suffering from performance and don't know if you have enough disks or the right controller upgrade first then check Sent from Samsung Mobile

2 1

ndmpcopy from 6.x to 8.1
by Jon Bousselot 23 Jul '12

23 Jul '12

Has anyone used ndmpcopy to migrate volumes from ontap 6.5 to 8.1 without going through any intermediate steps? The 8.1 docs say qtree snapmirror doesn't support source volumes prior to 6.5, so I'm looking for success stories on possible alternatives in case it doesn't work as advertised. rsync takes a long long time, but it works fine. This is all linux data, nfs. -Jon

3 4

dfpm command assistance
by Scott Eno 23 Jul '12

23 Jul '12

For the couple of folks out there that may actually use the dfpm commands, anyone know how to designate a subnet in the following command? dfpm dataset nfsaccess -w ???.???.???.??? It won't let me use ".0/24"-type notation, so how else could I do it? x.x.x.0?

1 0

switching between cluster mode and 7 mode
by Dan Olson 23 Jul '12

23 Jul '12

Hi all, Is it trivial to switch between cluster mode and 7 mode? I understand that the data on the array will be wiped, but are there other caveats to be aware of? Are there any licensing or cost issues to be aware of? Does anyone know what additional hardware is included in the FAS 2240 Cluster mode configuration? I understand there is a switch, potentially multiple switches included in cluster mode configurations. AtDhVaAnNkCsE ---- Daniel Murphy-Olson Systems Administrator Mathematics & Computer Science Division Argonne National Laboratory 630-252-0055

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