toasters

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13520 discussions

RE: NDMP backup speeds
by Blake, Delroy 25 May '04

25 May '04

You should see at least native rates on you backups. I would do s sysstat -s -c 100 1 and see what CPU and network speeds are. For AIT-2 I get 6-12 MB/s For LTO it was Closer to 15 MB/s This was three way backup with Sun 420R or Windows 2002 (DL580/DL580 G2) How many filers are backing up at once? You may need multiple GE networks to take advantage of the speed. Also Contention on the volumes that house qtree could also slow you down. -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Geoff Hardin Sent: Tuesday, May 18, 2004 5:53 PM To: toasters Subject: NDMP backup speeds Toasters, What is the general consensus for NDMP backup speeds? I have four older F760Cs that are getting about 5-6 MB/s to local tape drives. The problem is that I also have another nine filers (1 F630, 1 F720, 1 F740, 6 F760C) that are backing up via 3-way NDMP and we are lucky to see 4-5 MB/s; most are in the 1-2 MB/s range. And don't even get me started on the Solaris/SunOS/Linux/HP-UX/DEC clients that backup through the drives attached to the filers (0.1 - 2 MB/s). We were looking at upgrading the tape drives and such, but we have done a few test dumps from filer to filer, filer to LTO-2, and filer to LTO-2 attached to a Sun, and the numbers didn't improve much (definitely not enough to justify buying a new tape library / tape technology). Just a little background: We are using DLT7000 tape drives, which should have a maximum through put of about 10 MB/s (2:1 compression), contained in a Quantum P3000 library. We have all our filers on two separate networks; one for general data sharing and a private one for our backups. The private network is all GbE (fibre) using the Alteon GbE cards (Gigabit Ethernet Controller II). We are doing qtree dumps, and while some of the filers have only four qtrees per volume, others have over 40. Each qtree is generally capped at 200 GB max, and for those filers that have lots of qtrees, we still try to limit each saveset to around 200 GB. So, I guess what I'm really asking is 1) "What kind of speeds are you seeing?" and 2) "Am I doing something wrong?" Many thanks, Geoff Hardin geoff.hardin(a)dalsemi.com Difficulty is the excuse history never accepts.

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None
by cpkzkcmwobkhg＠yahoo.com 23 May '04

23 May '04

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NFS problem
by Mostafa Ahmed Magdy 23 May '04

23 May '04

Dear All, I'm facing a problem with oracle 9i RAC. The database is mounted via nfs on 2 clustered filers "F825c". The problem is when I tend to execute long - time procedures or sophisticated operations on the database the connection just hangs !!! Is there a fix for that ?? Eng. Mostafa Ahmed Magdy Data Center Administrator Masreya Information Systems ( Xceed ) K.m 28 Cairo - Alex road (Smart Village) Mobile: +2 - 010 - 17 - 44533 Website: http://www.xceedcc.com <http://www.xceedcc.com/>

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Out of Office AutoReply: Mail Delivery (failure wbfaris@uta.edu)
by Wendy B Faris 22 May '04

22 May '04

I will be out of the office from May 19-30. I will be checking e-mail every few days during that time. If you have an issue that needs immediate attention, please contact Tammy Dyer at tdyer(a)uta.edu or 817 272-2692, or Professor Tom Ryan at ryan(a)uta.edu Thank you. Best wishes, Wendy B. Faris Professor Interim Chair English Department

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PLEASE I NEED YOUR HELP/ASSISTANCE PLEASE,
by barclayben4＠virgilio.it 21 May '04

21 May '04

ATTN:Sir/Madam I know you would be surprised to receive this mail, but I would start by introducing my self I am MR BARCLAY BEN,.A member of Charles Taylor Government, the ousted president of Liberia, my purpose of writing you this mail is to seek your assistance in retrieving my funds which I lodge in the security company in my country Liberia before the war started the security company move every belongies in there position to there head office in Europe for safety because of the war. I managed to escape out of Liberia to African were I am now for asylum including my President and some others members of our Government and l cannot retrieve it myself because of my Status Right Now. Well I need your assistance to clear this funds, if you are willing to assist me kindly notify me via this email address and I Will instruct you on the procedure that will enable us retrieve the Funds and we will also discuss your benefit for your assistance my Friend know that this assistance did not have any risk involved I have every prove and every documentation that Back the funds up. Waiting to hear from you. Best Regards. MR BARCLAY BEN,

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Delayed Mail (still being retried)
by MAILER-DAEMON＠melissa.ipex.cz 21 May '04

21 May '04

This is the Postfix program at host melissa.ipex.cz. #################################################################### # THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. # #################################################################### Your message could not be delivered for 2.0 hours. It will be retried until it is 5.0 days old. For further assistance, please send mail to <postmaster> The Postfix program <tbbetacz-request(a)list.gin.cz>: host regina.gin.cz[212.71.128.10] said: 452 4.4.5 Insufficient disk space; try again later (in reply to MAIL FROM command)

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None
by zmcfkeo＠msn.com 21 May '04

21 May '04

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Third Party FastEther for Filers
by Ben Rockwood 20 May '04

20 May '04

Howde Toasters. I need to use VIFs on a F700 for awhile but the network doesn't have GigE capability and all my filers are built out with dual Gigs. So I need to find a cheap FastEther PCI card that I can use together with the onboard FastEther for VIFs for awhile. Does anyone know what 3rd party options I can use? I'm hoping that something commonly availble (Intel FastEthers, or something) so that I can just hop by Fry's and be done with it and not have to involve a reseller. Anyone done this? benr.

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URGENT ASSISTANT
by prince_johnson 20 May '04

20 May '04

PLEASE ASSIST THE NEEDY I want to crave your indulgence in reading through this mail to understand my predicament.I am Prince johnson, a Liberia refugee currently residing at the refugee camp here in Accra-Ghana and I am 26 years old. All hope of having a better future was shattered by the war in Liberia because I and my aged mother being the only surviving family of the slain Minister of Mineral Resources of the defunct government of LIBERIA were left with no alternative than to flee to Ghana. Please I am contacting you today for you to extend a hand of fellowship to poor victims of circumstance. I want you to consider affecting my life and that of my aged mother. All hopes was lost until recently when my late father Attorney visited the refugee camp andI was fortunate to meet him. He had come searching for us at the camp to pass on certain information that will affect our existence. He said my late father had deposited Eight million united state dollars ($8m) in a trunk of boxes/ gold and diamond with a Security Company here in Ghana since June 18th 1997 stating me as the Beneficiary in event of his death.Considering his relationship with my late father, he has since handed these documents to me and I have equally gone to verify these claims hence I am contacting you to assist me in retrieving these consignments. Please, what I actually want from you now is to assist me in retrieving and receiving these consignments on my behalf because I cannot handle this as a result of my current situation. I have not disclosed this to anyone before contacting you hence I want you to kindly keep this as confidential.I beg you in the name of God not to underestimate my claimsand request because I shall endeavor to furni sh you with the necessary documents.Please be kind enough to send me an email cos for now i dont have a phone. Thank you very much and God shall increase you and your family more abundantly. Regards Prince johnson(for the entire family)

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RE: NDMP backup speeds
by Bokkelkamp Ernst 19 May '04

19 May '04

I must apologise for being half-asleep and therefor overlooked the significance of the request ;-). Pse note, the following are real results obtained while testing with a representative mix of user data. There were a few restrictions at the time: I was only able to use a single FC port on an F880 and the 4 LTO 1 tape drives were attached to two FC-SCSI routers. Networker 6.1.3, Ontap 6.3. Administration = History Backup Data Including Excluding Operations Volume Administration Administration MB/sec GB/Hr MB/sec GB/hr 1 122 22,3 80 25,1 90 2 244 38,4 138 47,3 170 3 366 51,7 186 63,5 229 4 488 59,8 215 77,5 279 The following assumption was made based on backup and recover tests: backup +- 50 GB/Hr, recovery +- 25GB/Hr Operations Backup Recovery Estimated Measured Estimated Measured GByte/Hr GByte/Hr GByte/Hr GByte/Hr 1 50 80 25 62 2 100 138 50 120 3 150 186 75 144 4 200 215 100 160 Btw. I just remembered, the Networker server was a PC with a 200 Mhz Pentium, 128 Mbyte RAM. Bye Ernie -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Geoff Hardin Sent: Tuesday, May 18, 2004 11:53 PM To: toasters Subject: NDMP backup speeds Toasters, What is the general consensus for NDMP backup speeds? I have four older F760Cs that are getting about 5-6 MB/s to local tape drives. The problem is that I also have another nine filers (1 F630, 1 F720, 1 F740, 6 F760C) that are backing up via 3-way NDMP and we are lucky to see 4-5 MB/s; most are in the 1-2 MB/s range. And don't even get me started on the Solaris/SunOS/Linux/HP-UX/DEC clients that backup through the drives attached to the filers (0.1 - 2 MB/s). We were looking at upgrading the tape drives and such, but we have done a few test dumps from filer to filer, filer to LTO-2, and filer to LTO-2 attached to a Sun, and the numbers didn't improve much (definitely not enough to justify buying a new tape library / tape technology). Just a little background: We are using DLT7000 tape drives, which should have a maximum through put of about 10 MB/s (2:1 compression), contained in a Quantum P3000 library. We have all our filers on two separate networks; one for general data sharing and a private one for our backups. The private network is all GbE (fibre) using the Alteon GbE cards (Gigabit Ethernet Controller II). We are doing qtree dumps, and while some of the filers have only four qtrees per volume, others have over 40. Each qtree is generally capped at 200 GB max, and for those filers that have lots of qtrees, we still try to limit each saveset to around 200 GB. So, I guess what I'm really asking is 1) "What kind of speeds are you seeing?" and 2) "Am I doing something wrong?" Many thanks, Geoff Hardin geoff.hardin(a)dalsemi.com Difficulty is the excuse history never accepts.

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