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Re: loopback performance
by Stephane Bentebba 27 Oct '03

27 Oct '03

watch out with ndmpcopy *made in netapp* : - only last version of Ontapp deal well with unicode filenames (especially found in ntfs qtrees) - don't use the option that let you preserve /etc as it doesn't work correctly : it erase some /etc/files if you do so, then only ndmpcopy to another volume than the /root volume fanx for the responseanyway, in fact, i am pretty well aware of good and less of each solution but i am looking for real performance limit in loopback mode the probleme is as this : make ndmpcopy / snapmirror beetween two Giga Filer, you can burst up to 50GB/s if you do the same on the same Filer (source and dest), you are limited to 10KB/s as if you were using two Filer over 100M in my previous tries, that what i use to get Netapp record that as a bug, as the Filer should go faster on disk-to-disk copy than on network copy unfortunately, for code reason, Netapp hard code this disk-to-disk copy as a network throught loopback copy and internally, the loopback is limited to 36GB/hr... you see my point Steve Losen wrote: >>Hi all, >> >>i want to migrate data on a Giga Filer from its old disks to newer >>bigger one >> >>what can i use to get the faster operation knowing that : >>- volcopy won't be able to go faster than 36G/hr (as if ths volcopy was >>running over a 100TP link) >> >>I would like to know if any of you know if NDMPCopy or SnapMirror can go >>beyond this 36G limit in a loopback mode (migration from-to the same Filer). >> >> > > >If you are trying to minimize downtime, you might prefer to use >ndmpcopy. You can do a full copy of a snapshot while you leave >the filer up and let users continue to access the old volume. >Even it if takes quite a while to finish, it doesn't matter because >the filer is still available to users. After the full copy finishes, >do an incremental copy to pick up any changes that the users made >during the full copy. Then disable user access and do a second >incremental to pick up the changes during the first incremental. >Users will experience a very short downtime, at least compared to >waiting for a full copy to finish. > >You can probably do something similar with snapmirror, but we >don't have a license for it, so I've never used it. > >Steve Losen scl(a)virginia.edu phone: 434-924-0640 > >University of Virginia ITC Unix Support > > > > > -- -- jetez un oeil ici http://www.sensiva.com/ -- -- have a look here http://www.sensiva.com/ --

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RE: question regarding circuits for F760
by Alan McLachlan 26 Oct '03

26 Oct '03

Hi Dan, Nope, regular power points work just fine (240V/10A, 110V/20A etc). The F760 Hardware Guide (downloadable from NOW) has the power consumption for the filer head, and the hardware guide for your shelves (FC7, FC8, DS14 or whatever) has the consumption for the shelves. I always recommend connecting one of each PSU for each component to a different circuit, preferably through a UPS. AFAIK Sun E6500 is the same, consult your Sun rep for the exact spec's but I'm certain I have seen a couple of them running fine on normal mains power here (Australia). regards, Alan. -----Original Message----- From: DFinn(a)studentadvantage.com [mailto:DFinn@studentadvantage.com] Sent: Saturday, 25 October 2003 5:13 AM To: toasters(a)mathworks.com Subject: question regarding circuits for F760 I am being asked some questions about our F760s by a hosting provider and I was unsure what the answers. Do they need 30amp or 50amp circuits and what is the phase for these circuits. Also, I need to find out that info for Sun E6500s so you get an extra bonus if you know that answer too. Thanks Dan **** ASI Solutions Disclaimer **** The material transmitted may contain confidential and/or privileged material and is intended only for the addressee. If you receive this in error, please notify the sender and destroy any copies of the material immediately. ASI will protect your Privacy according to the 10 Privacy Principles outlined under the new Privacy Act, Dec 2001. This email is also subject to copyright. Any use of or reliance upon this material by persons or entities other than the addressee is prohibited. E-mails may be interfered with, may contain computer viruses or other defects. Under no circumstances do we accept liability for any loss or damage which may result from your receipt of this message or any attachments. **** END OF MESSAGE ****

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may god pay you back
by d2_john＠freenet.de 26 Oct '03

26 Oct '03

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question regarding circuits for F760
by DFinn＠studentadvantage.com 24 Oct '03

24 Oct '03

I am being asked some questions about our F760s by a hosting provider and I was unsure what the answers. Do they need 30amp or 50amp circuits and what is the phase for these circuits. Also, I need to find out that info for Sun E6500s so you get an extra bonus if you know that answer too. Thanks Dan

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adding a gigabit interface to a F85
by Aditya 24 Oct '03

24 Oct '03

We have a F85 that we'd like to add a gigabit (copper or fiber) interface to: - is there a copper interface available for the F85? (I only see fiber ones) - what version of OnTAP is necessary to enable jumbo-frames - what is the max throughput in MBps we can expect the F85 to be able to push given 1 volume with 5 drives and a single large file - any known hints/problems with using such a setup with FreeBSD clients with Intel Pro/1000 copper interfaces (em)? - any recommendations on a reasonable switch which has at least one fiber interface or gbic port and one copper GigE interface? Thanks, Adi

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RE: Filer upgrades
by Darragh, Stephen J 23 Oct '03

23 Oct '03

Hi, I looked on the now site, but could not find what the fields represent? Does anyone have a list of other "missing" commands that you don't get form help or "?"? Thanks Steve Darragh > -----Original Message----- > From: Chris Thompson [SMTP:cet1@cus.cam.ac.uk] > Sent: Wednesday, October 22, 2003 8:24 PM > To: skeezics(a)selectmetrics.com > Cc: toasters(a)mathworks.com > Subject: Re: Filer upgrades > > Chris Lamb writes: > > > Hey, what's that command to have ONTAP print out uptime stats? > > availsomething? I'm curious to see what our stats have been over the > last > > three years. > > "availtime", or "availtime full" for extra verbosity. One of those > commands sneakily omitted from the list given by "?". > > Chris Thompson > Email: cet1(a)cam.ac.uk

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Filer upgrades
by Ambrose_Earle＠shamrockfoods.com 23 Oct '03

23 Oct '03

Just a poll to see who attempts to disconnect/unmount every possible client (server) before attempting a DataONTAP upgrade and who types download; reboot. Does anyone leave their Oracle databases mounted via NFS over UDP up the whole time?

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User defined SNMP traps
by paul.winchcombe＠ukgateway.net 23 Oct '03

23 Oct '03

Does anyone have any recommendation on user defined snmp traps. I am interested in monitoring of Qtree space and Cluster monitoring Regards Paul

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TCP connection limit on OT anymore?
by Kennedy, Jeffrey 22 Oct '03

22 Oct '03

From what I hear there was a hard limit of 25 connections to a filer when using TCP. The only way to get around that at the time was use UDP. From everything I've read, people I've talked to, and NetApp's own assertion this limit is long gone. The only limit now is a practical one of cpu and memory. Does anyone have any evidence to the contrary? Thanks. ~JK

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RE: Solaris iSCSI initiator
by Ben Rockwood 22 Oct '03

22 Oct '03

Figured I'd pass this along incase someone doesn't know. Sun doesn't themselves supply an iSCSI initiator for Solaris. There is an iSCSI initiator in "Sun Linux" but thats just open source Linux code, not Sun stuff. Cisco however does seem to have an iSCSI initiator for Solaris (and HP-UX, AIX, etc). Check it out here: http://www.cisco.com/en/US/products/hw/ps4159/ps2160/products_qanda_item091… To get it you need a Cisco login which I don't have, and it's already been EOL'ed. Might be interesting to play with however. benr. -----Original Message----- From: Michael Christian [mailto:mchristi@yahoo-inc.com] Sent: Wed 10/22/2003 12:26 PM To: Jerry; Ting, James Cc: list toasters Subject: RE: Solaris iSCSI initiator Think $500 per TOE and a $200 Linksys gigE switch, versus $1500+ per HBA and a $20,000 Brocade. Yeah, the iSCSI's a little bit cheaper. -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Jerry Sent: Wednesday, October 22, 2003 10:30 AM To: Ting, James Cc: list toasters Subject: RE: Solaris iSCSI initiator Wow. this is cool. But do the cards cost as much as getting HBA's for a SAN environment. In my situation, we are trying to judge the cost differences between using an existing SAN and testing cheaper iSCSI solutions (or what would appear cheaper). Plus, we like the Filer simplicity. --- "Ting, James" <james.ting(a)netapp.com> wrote: > qlogic 4010 or adaptec 7211. They handle the entire > iSCSI > stack on the card. Both vendors support fibre and > copper. > > > > -----Original Message----- > From: Jerry [mailto:juanino@yahoo.com] > Sent: Wednesday, October 22, 2003 10:21 AM > To: Ting, James > Subject: RE: Solaris iSCSI initiator > > > When you say iSCSI HBA's, do you mean Fibre HBA's. > My > experience was with copper gig-e. > > --- "Ting, James" <james.ting(a)netapp.com> wrote: > > Jerry > > > > We haven't tested the Cisco Solaris initiator with > > our > > target. Several iSCSI HBA vendors plan to support > > Solaris > > (Qlogic, Adaptec). > > > > Glad to hear that your experience with iSCSI on > > Windows > > has been good. > > > > Jim Ting > > iSCSI Product Marketing > > > > -----Original Message----- > > From: Jerry [mailto:juanino@yahoo.com] > > Sent: Wednesday, October 22, 2003 7:50 AM > > To: list toasters > > Subject: Solaris iSCSI initiator > > > > > > I've been testing iSCSI on windows systems and the > > performance/reliability seems to be good. I was > > wondering if anyone knows why Solaris, or any of > the > > commercial unix vendors haven't jumped on board > with > > this. I noticed a cisco initiator for Solaris, > but > > I > > wonder if it even works with the netapp. If you > > call > > Sun, they are kinda clueless on iSCSI and don't > > really > > elaborate much in my experience. > > > > This is especially annoying since I notice linux > has > > some iscsi stuff. > > > > Any thoughts? > > > > __________________________________ > > Do you Yahoo!? > > The New Yahoo! Shopping - with improved product > > search > > http://shopping.yahoo.com > > > __________________________________ > Do you Yahoo!? > The New Yahoo! Shopping - with improved product > search > http://shopping.yahoo.com __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com

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