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RE: Reset of Archive bit causing very large backups
by Craig Slack 19 Feb '02

19 Feb '02

Robert, We experienced the exact problem that you describe, except with an F760 running a different ONTAP version. There is an ONTAP bug detailed in NetApp Bug ID #49892 that might help you out. The fix for us was to upgrade to 6.1.1R2P1 which solved the problem. I hope that helps. Craig Slack Leader, NT Services PMC-Sierra Inc., Computer Services Dept. -----Original Message----- From: Wiebke, Robert (Robert) [mailto:wiebke@lucent.com] Sent: Tuesday, February 19, 2002 9:08 AM To: Toaster List Subject: Reset of Archive bit causing very large backups Hello Toasters, We are running 5.3.6r1 on our main Filer 740 and we have noticed very large differential backups lately. A full backup will take up approx. 340GB of tape, however our differential backups are taking up on average 80GB. Last week we saw two consecutive differential backups of 240GB and 340GB. I've spoken to Veritas (Using Datacenter 3.4 with a W2K master server) and they tell me the backups themselves are accurate. While investigating this we noticed that files not accessed in a long time (6+ months) were still showing their archive bits set. As these files have not been changed in sometime the archive bit would be expected to not be set. Sure enough, on all files we looked at, the archive bit was set on all. Is this a bug? Is this documented and is a fix available? I've opened a case with the NOW site, and as of yet I have not heard from them. Would you expect an 80GB differental backup on a 340GB filer? Even on weekends when less data was being accessed? Any comments appreciated. Thanks!

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Reset of Archive bit causing very large backups
by Wiebke, Robert (Robert) 19 Feb '02

19 Feb '02

Hello Toasters, We are running 5.3.6r1 on our main Filer 740 and we have noticed very large differential backups lately. A full backup will take up approx. 340GB of tape, however our differential backups are taking up on average 80GB. Last week we saw two consecutive differential backups of 240GB and 340GB. I've spoken to Veritas (Using Datacenter 3.4 with a W2K master server) and they tell me the backups themselves are accurate. While investigating this we noticed that files not accessed in a long time (6+ months) were still showing their archive bits set. As these files have not been changed in sometime the archive bit would be expected to not be set. Sure enough, on all files we looked at, the archive bit was set on all. Is this a bug? Is this documented and is a fix available? I've opened a case with the NOW site, and as of yet I have not heard from them. Would you expect an 80GB differental backup on a 340GB filer? Even on weekends when less data was being accessed? Any comments appreciated. Thanks!

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MySQL on a filer...
by johnd＠energis2.net 18 Feb '02

18 Feb '02

A quick question for all you good people in Toaster List Land. Has anyone had any experience of running a (busy) MySQL DB off a filer? We'd quite like all the nice, scrummy data-protection features of a proper filestore but, well, you know, NFS and databases. Are we mad, or will it work? We have Filers aplenty so we can mess around, but the databases are all a bit company-critical so we're being cautious. We know it will *basically* work, but performance issues are the main worry. The DB has to be reasonable quick still, and random block access isn't a NAS strong point. So, any previous wins or horror stories? Ta, J -- John Denholm <johnd(a)energis-squared.com> The Evil Cachemaster . Team Leader, Content Distribution and Storage, Core Systems, Energis Squared Tel: +44 113 207 6357

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Re: File access via Windows (laptops)
by Steve Turner 18 Feb '02

18 Feb '02

This worked, thanks. Thanks also to the others who sent the same information and other helpful information and suggestions. I will also look into getting the upgrade as someone pointed out that the newer version is more win2k friendly. I think I will get a netapp class out of this also :). Steve "Muhlestein, Mark" wrote: > > If you have a domain account you should be able to use it to map a drive, no matter how the client comes up. If you log into the laptop with a local account, try bringing up a cmd prompt then say > > C:>net use * \\filer\share /user:domain\acct > > It should prompt you for the password, then connect. If this isn't working, something else is wrong so you should open a case with netapp customer support. You might also want to consider upgrading to 6.1 or later, since there are some Win2k issues in 6.0-era releases. > > Mark > > -----Original Message----- > From: Steve Turner [mailto:sturner@msai.mea.com] > Sent: Sunday, February 17, 2002 9:43 PM > To: Muhlestein, Mark > Subject: Re: File access via Windows (laptops) > > Most are runnin Windows 2k Pro and they already have domain accounts, > but it still doesn't work unless they actually login to the domain. I > can take my laptop and map the drive if I login to the domain, this > works. But if I do not login to the domain (just login to laptop with a > local account) it does not work. The local account and the domain > account are the same userid and password. > > thanks for any help, > steve > > "Muhlestein, Mark" wrote: > > > > What are they running on their laptops? If it's NT or later, they can map a drive letter using a domain account. > > > > Mark > > > > -----Original Message----- > > From: Steve Turner [mailto:sturner@msai.mea.com] > > Sent: Sunday, February 17, 2002 6:51 AM > > To: toasters(a)mathworks.com > > Subject: File access via Windows (laptops) > > > > We are running a Netapp F820, NetApp Release 6.0.1R3. I finally got our > > Netapp setup to allow windows users to access files (specifically the > > users home directory). As long as the user is on a PC that logs into > > the domain, they can access the files without any problems. > > > > We have serveral users that use laptops and do not login to the domain. > > They cannot access any shares on the netapp. They have accounts on the > > win2k server and can access files on the windows server. If I change > > the laptop so that they are logging into the domain, it works. no > > problems. > > > > When users are on the road and/or accessing our network via VPN, it > > would be difficult for them to login to the domain. Is there a > > workaround? > > > > Any suggestions would be appreciated, > > > > Please let me know if you need more info. > > > > Thanks, > > Steve > > > > ---------------------------------- > > Mitsubishi Electric and Electronics > > Design Engineering Center - East > > Durham, NC

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what disks can i use in an F330?
by Brian Hechinger 17 Feb '02

17 Feb '02

i've got an F330 that i'd like to get online one of these days, and i'd like to get the most storage onto it that i possibly can. it's got 5 narrow SCSI channels on it, and i have a whole slew of DEC BA350 StorageWorks shelves to hook up to it. what is the largest size drives i can put on this thing? is there a particular model of drive that i am limited to? also, what are my options for a wide scsi controller or two in this thing? several of the BA350 shelves have 16-bit personality cards in them, and i'd love to be able to take advantage of that rather than downgrade them to 8-bit personality cards. i think that's all the questions i have for now. next step after getting disks on it, find a copy of the OS for it. -brian

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URGENT ASSISTANCE
by chidi john 16 Feb '02

16 Feb '02

ASYLUM CAMP Abidjan COTE D'IVOIRE Tel : 225-07-82-23-21 Attn: President/CEO CONFIDENTIAL I am well confident of your capability of executing this business for the mutual benefit of our both families, believing that you will not expose or betray the trust and confident I am about to repose on you. I am contacting you with the greatest delight and personal respect. I am Stella Kamara, the first daugther of Chief Kamara Raymond former minister of Mineral Resources of the Republic of Sierra-Leone who was recently murdered by the Forces Loyal to Corporal Foday Sankoh, due to his support to the incumbent elected President Tejan Kabbah to remain in the office as reported on the cable Network News (CNN) and by the British Broadcasting Corporation (BBC). Two days before my father was assassinated, he confided in me and ordered me to go to his underground safe and moved out immediately with the deposit agreement and cash receipt he made with a Security Company in Abidjan where he deposited one trunk box which contains cash sum of US$30,000,000 (Thirty million United States Dollars). I successfully smuggled out of the country to Abidjan, Côte d'Ivoire with the help of some rebels loyal to My father and have gone to the Security Company with the deposit agreement to confirm the deposit myself and also I have been granted political stay by the government of Côte d'Ivoire. Unknown to the Security company my father declared the contents of the trunk as African Artworks belonging to his foreign partner, that the keys are with him in order to prevent them from knowing the real content. I am now seeking for your direct assistance to front you as the owner of the consignment and lift the fund out of this country to your base for onward profitable investment which necessitated my contacting you and you will have 13% out of the money. We are to open a non residential bank account here in Abidjan in your name through which the fund will be remitting from to your bank account abroad and your reward for this noble assistance is under negotiable. Further detail will be made known to you on confirmation of your interest to assist me towards this project. Contact me through the above telephone and fax numbers . Expecting your immediate response. Yours sincerely. Stella Kamara ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! Yahoo! Mail : http://fr.mail.yahoo.com

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RE: Slow write performance
by Art Hebert 16 Feb '02

16 Feb '02

What is the wafl command to check the layout of data, etc. thanks art -----Original Message----- From: Jeff Kennedy [mailto:jlkennedy@amcc.com] Sent: Wednesday, February 06, 2002 6:21 AM To: EH(a)dataconnection.com Cc: Mike Ball; Toasters (E-mail) Subject: Re: Slow write performance This was an issue for sure, I've been through it myself. However, you can use the wafl commands to check the layout of data and, if necessary, re-stripe it. I think the '1 disk add' issue is no longer a real issue.... ~JK Mike Ball wrote: > > Edward, > I not sure I would be concerned about the 0's on disk writes you are > seeing. As long as Net KB keeps coming in/out. The Netapp may be > recalculating parity and holding the writes in NVRAM before it flushes to > disk, etc.. As for the volume being full, I see a lot of customers only add > 1 disk at a time when the volumes get full. This causes a problem because > you basically do not stripe across disks. You only are writing to one disk. > At this point you become disk bound which could very well be what is > happening here. Make sure you add disks a few at a time when you grow your > volume to stripe the data among drives. > Mike > > -----Original Message----- > From: Edward Hibbert [mailto:EH@dataconnection.com] > Sent: Wednesday, February 06, 2002 8:29 AM > To: 'Mike Ball' > Subject: RE: Slow write performance > > Mike, > > I can send you a couple of the outputs straight away. sysstat doesn't > recognise the -u option; what's the difference between that and sysstat 1? > > I take your point about network settings - we've had problems in this area > before - but I don't understand why I would get 0 disk writes for a long > time while still getting network traffic in and out. I know that my network > traffic during such a period includes write requests (from pktt trace), so > what I'm wondering is what causes the writes to hang up and then recover. > > The disk on /vol/vol0 has previously got very full. Although we've now > freed up some space, do you think there might be persistant fragmentation? > > Edward. > > nacolt1*> df > Filesystem kbytes used avail capacity Mounted on > /vol/vol0/ 95328924 54170444 41158480 57% /vol/vol0/ > /vol/vol0/.snapshot 0 0 0 ---% > /vol/vol0/.snapshot > /vol/vol1/ 63552616 60599768 2952848 95% /vol/vol1/ > /vol/vol1/.snapshot 0 0 0 ---% > /vol/vol1/.snapshot > > Volume vol0 (root) > > RAID group 0 > > RAID Disk HA.ID HA SHELF BAY CHAN Used (MB/blks) Phys > (MB/blks) > --------- ----- ------------ ---- -------------- > -------------- > parity 8.3 8 0 3 FC:A 34500/70656000 > 35003/71687368 > data 8.4 8 0 4 FC:A 34500/70656000 > 35003/71687368 > data 8.1 8 0 1 FC:A 34500/70656000 > 35003/71687368 > data 8.0 8 0 0 FC:A 34500/70656000 > 35003/71687368 > > Volume vol1 > > RAID group 0 > > RAID Disk HA.ID HA SHELF BAY CHAN Used (MB/blks) Phys > (MB/blks) > --------- ----- ------------ ---- -------------- > -------------- > parity 8.2 8 0 2 FC:A 34500/70656000 > 35003/71687368 > data 8.6 8 0 6 FC:A 34500/70656000 > 35003/71687368 > data 8.5 8 0 5 FC:A 34500/70656000 > 35003/71687368 > nacolt1*> > > -----Original Message----- > From: Mike Ball [mailto:MBall@DATALINK.com] > Sent: Wednesday, February 06, 2002 1:07 PM > To: Edward Hibbert > Subject: RE: Slow write performance > > Edward, > Trying forcing the switch you plug into to 100Mb Full duplex. In > addition, instead of making e0 auto negotiate, force it to 100Mb full > duplex. Your network KB/s is pretty low. Also, how full is your file system? > Can you send me the output of the following commands: > > df > sysstat -u 1 (run for 20 seconds) > sysconfig -r > > Thank you, > Mike > > -----Original Message----- > From: Edward Hibbert [mailto:EH@dataconnection.com] > Sent: Tuesday, February 05, 2002 5:27 PM > To: 'Mike Ball' > Subject: RE: Slow write performance > > Here's the sysstat. Interesting that this shows periodic 0 writes. > > Tue Feb 5 22:22:30 GMT [tn_login_0]: root logged in from host: > 192.168.21.16 > sysstat 1 > CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache > in out read write read write age > 54% 1012 0 1 393 1494 2430 2446 0 0 1 > 43% 1012 0 0 431 1549 2302 3947 0 0 1 > 46% 1278 0 0 471 1787 2708 1116 0 0 1 > 57% 1080 0 0 611 2019 2078 5177 0 0 1 > 31% 726 0 0 439 1056 840 1028 0 0 1 > 37% 962 0 0 388 1872 1561 0 0 0 1 > 32% 919 0 0 404 1786 1688 0 0 0 1 > 33% 1050 0 0 407 1815 1529 0 0 0 1 > 43% 1102 0 0 623 2148 1264 0 0 0 1 > 43% 857 0 1 347 1585 2154 0 0 0 1 > 38% 746 0 0 430 1878 1704 0 0 0 1 > 58% 463 0 1 255 800 2610 3675 0 0 1 > 52% 997 0 0 517 1544 2840 2084 0 0 1 > 48% 792 0 0 401 1350 2222 5365 0 0 1 > 50% 1028 0 0 429 2055 2264 2108 0 0 1 > 37% 864 0 0 304 1864 1893 2210 0 0 1 > 39% 1053 0 0 566 2154 988 8 0 0 1 > 45% 1143 0 0 604 2309 1733 0 0 0 1 > 35% 1034 0 0 420 2123 1860 0 0 0 1 > CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache > in out read write read write age > 42% 1000 0 0 550 2016 1264 0 0 0 1 > 52% 1118 0 1 575 2541 1589 0 0 0 1 > 30% 791 0 0 327 1648 1880 0 0 0 1 > 48% 880 0 0 382 1896 2022 1905 0 0 1 > 47% 745 0 1 354 1354 2196 2828 0 0 1 > 57% 1287 0 0 581 1772 2366 3583 0 0 1 > 51% 1136 0 0 595 1929 2488 1168 0 0 1 > 48% 987 0 0 419 1273 2348 3504 0 0 1 > 35% 768 0 0 421 1623 1597 720 0 0 1 > 45% 1237 0 0 624 2465 1869 0 0 0 1 > 38% 1112 0 0 390 1995 1688 0 0 0 1 > 44% 1044 0 0 585 1817 1697 0 0 0 1 > > ifconfig output: > > e0: flags=240043<UP,BROADCAST,RUNNING,UP_1ARY,LINK_UP> mtu 1500 > inet 192.168.21.81 netmask 0xffffff00 broadcast 192.168.21.255 > ether 00:a0:98:00:97:67 (auto-100tx-fd-up) > lo: flags=240049<UP,LOOPBACK,RUNNING,UP_1ARY,LINK_UP> mtu 1536 > inet 127.0.0.1 netmask 0xff000000 broadcast 127.0.0.1 > > Regards, > > Edward. > > -----Original Message----- > From: Mike Ball [mailto:MBall@DATALINK.com] > Sent: 05 February 2002 19:58 > To: Edward Hibbert; toasters > Subject: RE: Slow write performance > > Edward, > Telnet to the netapp and type "sysstat 1". Let it run for about 20 > seconds and send us the output. Also, type "ifconfig -a" and send us the > output. > Mike > > -----Original Message----- > From: Edward Hibbert [mailto:EH@dataconnection.com] > Sent: Tuesday, February 05, 2002 2:24 PM > To: toasters > Subject: Slow write performance > > We're seeing some performance problems on an F720 which you guys might be > able to help with (even though it's not exactly top of the range nowadays). > > What we see is: > - We're driving it over NFS v3. > - We get about 1500 ops/sec out of it, of which one third are writes and two > thirds are reads. There aren't many file open/close operations. > - The operations are to random locations in large (10GB) files. > - The CPU is running about 75%, and the network input and output below the > throughput of the link we have to it. We've seen both CPU and network go > higher if we do simple copy tests. > - Looking it it via pktt trace, something approaching 15% of WRITE > operations take long enough for the clients to time out and retransmit (so > at least 1 second). None of the READ operations do. > - The retransmissions appear to come in bunches. For example we'll see a > few seconds where the filer doesn't respond, during which time the > retransmissions will come in, then it will wake up and send some responses > back. > - The rest of the time, the WRITES are very fast (sub-ms). > > This appears to have worsened recently. We tried a couple of things: > - We thought that this might be because the disk had got full and > fragmented, so we zapped a bunch of data. > - We rebooted. > Neither of these seemed to help much. > > sysstat consistently shows a cache age of 1. This, and the bursty nature of > the delays, suggest to me that I'm just hitting it too hard, and there's > some kind of periodic cache-flushing operation going on, but do any of you > folk have any other suggestions? > > Edward Hibbert > Internet Applications Group > Data Connection Ltd > Tel: +44 131 662 1212 Fax: +44 131 662 1345 > Email: eh(a)dataconnection.com Web: http://www.dataconnection.com -- ===================== Jeff Kennedy Unix Administrator AMCC jlkennedy(a)amcc.com

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smbcacls
by neil lehrer 15 Feb '02

15 Feb '02

can anyone point me at some decent examples, the man page is not giving me enough info. i want to set rwx,rwxd,rwxd on a dir. thanks --

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by BrainCoders.com 15 Feb '02

15 Feb '02

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RE: Block sizes
by Edward Hibbert 14 Feb '02

14 Feb '02

Cheers, that 64 bytes is interesting. Do you get a perf benefit on access to the file, too? Is it affected by long filenames at all? Edward. -----Original Message----- From: Steve Losen [mailto:scl@sasha.acc.virginia.edu] Sent: Thursday, February 14, 2002 3:46 PM To: toasters(a)mathworks.com Subject: Re: Block sizes > Also worthy of note, to date there is no way to modify the block size. > It's hardcoded in wafl. > > ~JK While we're on the subject of WAFL trivia, WAFL does not split a 4K block into fragments, so files always consume disk space in even multiples of 4K bytes. However, if the length of a file is 64 bytes or less, then the file data is stored in the inode and no data blocks are consumed. WAFL uses the space in the inode that otherwise holds the data block list. This is nice because most symbolic links are small enough to fit in the inode. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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