Re: TSM 5.5 using LANFree backup really slow
Hi Steve... Well, my backup windows is something like 10 12 hours, size of a full backup is near of 2TB and incremental per day not bigger than 20G. My idea is to perform a full backup on thursday (to keep a copy off the office on weekend) and incremental/differential during the week. OK, new thing, I've TWO TS3100, so I'm going to make a copy of the tape on another library, but I think this is not a problem with my backup windows as it will be copied from library to library without prodcution server involved, right? Thanks again folks... -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 1:36 PM, Steven Langdalesteven.langd...@cat.com wrote: LAN Free will be poor with this kind of data. What is your actual backup restore requirement? What's your backup window, how much data and how much changed data per day. Steven Steven Langdale Global Information Services EAME SAN/Storage Planning and Implementation ( Phone : +44 (0)1733 584175 ( Mob: +44 (0)7876 216782 ü Conference: +44 (0)208 609 7400 Code: 331817 + Email: steven.langd...@cat.com Flavio Junior bil...@gmail.com Sent by: ADSM: Dist Stor Manager ADSM-L@VM.MARIST.EDU 01/08/2009 17:10 Please respond to ADSM: Dist Stor Manager ADSM-L@VM.MARIST.EDU To ADSM-L@VM.MARIST.EDU cc Subject Re: [ADSM-L] TSM 5.5 using LANFree backup really slow Caterpillar: Confidential Green Retain Until: 31/08/2009 Hi David, Well FileServer is exact what i'm backup ;/ A lot of files with sizes between 100k and 20Mb. So, there is nothing that can be done to improve this, at least for 100GB/h? Just to point my head toward right direction.. LANFree backups or LAN backups. Thanks, -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 12:02 PM, David McClellanddavid.mcclell...@networkc.co.uk wrote: What is the nature of the data that you're backing up here? Large files/objects or lots of smaller files/objects? The classic recommendation for SAN backups direct to tape is that it's best used only for larger objects (eg database backups, TDPs or disk image etc) to ensure optimal streaming to tape. Backing up a file server with millions of individual small files direct to tape won't always produce a great overall throughput figure. /David Mc London, UK Sent from my iPhone On 1 Aug 2009, at 15:37, Flavio Junior bil...@gmail.com wrote: Hi Steve, thanks for answering... Yeah, the destination is tape, i see on StorageAgent console the connection to server and opening tape, during the backup I see the bytes increasing on Backup by LANFree: (but, this value is ALWAYS lower than the value of normal backup... i don't know if this is normal). VALIDATE LANFREE node policyset shows me that the node is capable to LANFree backups. During the backup (using webclient interface) I can see two speeds, well.. A screenshot of backup report is at link: http://img18.imageshack.us/img18/9278/backupz.jpg The screenshot is in portuguese but I think is easy to you guess what is each value... Time: 5:45 Hours Size: 181 Gb No compression Rede == Network Agregada == Aggregate, combination... (not sure how TSM show it) Ok, this is what I have... If need more info just let me know. Thanks again. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 3:51 AM, Steven Harrisst...@stevenharris.info wrote: Flavio Is the destination of your backup pool tape? Have you confirmed with VALIDATE LANFREE on the server Are you seeing a proxied by message in the client log to indicate that the storage agent is in use? Is the *network* path configured as 1Gb - I'm suspecting you have a LAN backup and that the lan path has issues. HTH Regards Steve Steven Harris. TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi folks, I'm here, again, asking for help :) More I read, more doubts I have. I'm now implementing a TSM For SAN setup, to performance comparison with my currently LAN backup. I'll describe my scenario below, any doubt's feel free to ask me: - 2 Production nodes using RHEL 5.3 connected to SAN - 1 IBM DS4700 storage with 14 FC disks (13 raid5 + 1 hot-spare) - Each node have a emulex dual-port HBA - 2 Brocade TotalStorage fiber switches, with coherent zonings - Library is a IBM TS3100 LTO4 SAN, with only one drive Ok, i'm using TSM with LAN backups for a week, the transfer rate comes among 60~80GB per hour. The tape has a nominal write speed of 120MB/s that says me 430GB/h, ok.. this is a *nominal* speed, I was expecting something near 300GB/h, good enough for me. For these tests I've configured TSM Server on node1 and TSM Client on node2. Each node has 6 1Gbps NIC's, 4 to public network 2 for cluster-heartbeat + backups. With this setup I've got, as said above, 60~80GB/h. So, I decide to setup TSM for SAN.. Download a lot of docs/books and
Re: TSM 5.5 using LANFree backup really slow
Flavio You didn't say what your client machine is. How about an image copy and a complete incremental on the weekend and a incremental-by-date on other days. For a full restore you can restore the image and then apply the incrementals. This should be reasonably quick. Incremental-by-date is the fastest form of incremental backup, but is not complete, hence you need a normal incremental periodically. I'm a little perplexed by your stated need for a full backup. Most TSM installations do not bother with fulls, as they are unnecessary. Using a separate storage pool for this node, or a shared but collocated storage pool will provide the necessary restore speed. If that is not sufficient consider an active pool, and if that is still not fast enough you can go with the image plus incremental. Regards Steve Steven Harris TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi Steve... Well, my backup windows is something like 10 12 hours, size of a full backup is near of 2TB and incremental per day not bigger than 20G. My idea is to perform a full backup on thursday (to keep a copy off the office on weekend) and incremental/differential during the week. OK, new thing, I've TWO TS3100, so I'm going to make a copy of the tape on another library, but I think this is not a problem with my backup windows as it will be copied from library to library without prodcution server involved, right? Thanks again folks...
Re: TSM 5.5 using LANFree backup really slow
Hi, Maybe You can try this first:, using Operating system backup, try to backup direct to tape, and see the result. I've been facing this kind of problem, file server backup using LANFree. Total data approximately 900 GB - 1 TB, number of files approx 1,1 millions, and it took more than 24 hours.But when i used Operating system backup, backup direct to tape, the result much better than TSM LANFree backups. So i check all recomended setting for performance tuning, and there's an increasing in speed and transfer time. Best Regards, Yudi Darmadi PT Niagaprima Paramitra Jl. KH Ahmad Dahlan No.25 Kebayoran Baru, Jakarta Selatan 12130 Phone: 021-72799949; Fax: 021-72799950; Mobile: 081905530830 http://www.niagaprima.com - Original Message - From: Flavio Junior bil...@gmail.com To: ADSM-L@VM.MARIST.EDU Sent: Saturday, August 01, 2009 11:09 PM Subject: Re: [ADSM-L] TSM 5.5 using LANFree backup really slow Hi David, Well FileServer is exact what i'm backup ;/ A lot of files with sizes between 100k and 20Mb. So, there is nothing that can be done to improve this, at least for 100GB/h? Just to point my head toward right direction.. LANFree backups or LAN backups. Thanks, -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 12:02 PM, David McClellanddavid.mcclell...@networkc.co.uk wrote: What is the nature of the data that you're backing up here? Large files/objects or lots of smaller files/objects? The classic recommendation for SAN backups direct to tape is that it's best used only for larger objects (eg database backups, TDPs or disk image etc) to ensure optimal streaming to tape. Backing up a file server with millions of individual small files direct to tape won't always produce a great overall throughput figure. /David Mc London, UK
Re: TSM 5.5 using LANFree backup really slow
Flavio Is the destination of your backup pool tape? Have you confirmed with VALIDATE LANFREE on the server Are you seeing a proxied by message in the client log to indicate that the storage agent is in use? Is the *network* path configured as 1Gb - I'm suspecting you have a LAN backup and that the lan path has issues. HTH Regards Steve Steven Harris. TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi folks, I'm here, again, asking for help :) More I read, more doubts I have. I'm now implementing a TSM For SAN setup, to performance comparison with my currently LAN backup. I'll describe my scenario below, any doubt's feel free to ask me: - 2 Production nodes using RHEL 5.3 connected to SAN - 1 IBM DS4700 storage with 14 FC disks (13 raid5 + 1 hot-spare) - Each node have a emulex dual-port HBA - 2 Brocade TotalStorage fiber switches, with coherent zonings - Library is a IBM TS3100 LTO4 SAN, with only one drive Ok, i'm using TSM with LAN backups for a week, the transfer rate comes among 60~80GB per hour. The tape has a nominal write speed of 120MB/s that says me 430GB/h, ok.. this is a *nominal* speed, I was expecting something near 300GB/h, good enough for me. For these tests I've configured TSM Server on node1 and TSM Client on node2. Each node has 6 1Gbps NIC's, 4 to public network 2 for cluster-heartbeat + backups. With this setup I've got, as said above, 60~80GB/h. So, I decide to setup TSM for SAN.. Download a lot of docs/books and start reading/doing. I end up with: - Fabric zoning changes, isolating a HBA port on each dual-port cards for nodes - Installed StorageAgent on node2 - Installed TSM Client on node2 - - Configured the client to connect on storageagent - Redefine all my TSM Server setup - - Make Library as shared=yes, configure storage agent as a server, configure path, configure datawritepath=lanfree and so on... Ok, time to backup. And, for my surprise i got only ~500MB per minute.. I thought it very strange.. I've no idea what is the problem, I've tried with compression and without, DATAREADPATH=LAN and SAN, VirtualMountPoints or Physical ... Does anybody have an idea the reason of that bad transfer rate?? The servers are Samba Servers, with all kind of file and all size As I said before, I'm really new with TSM so is really possible that I've misconfigured something :) Anyway, thanks in advance, and any help will be appreciated. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 05:58:00
Re: TSM 5.5 using LANFree backup really slow
Hi Steve, thanks for answering... Yeah, the destination is tape, i see on StorageAgent console the connection to server and opening tape, during the backup I see the bytes increasing on Backup by LANFree: (but, this value is ALWAYS lower than the value of normal backup... i don't know if this is normal). VALIDATE LANFREE node policyset shows me that the node is capable to LANFree backups. During the backup (using webclient interface) I can see two speeds, well.. A screenshot of backup report is at link: http://img18.imageshack.us/img18/9278/backupz.jpg The screenshot is in portuguese but I think is easy to you guess what is each value... Time: 5:45 Hours Size: 181 Gb No compression Rede == Network Agregada == Aggregate, combination... (not sure how TSM show it) Ok, this is what I have... If need more info just let me know. Thanks again. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 3:51 AM, Steven Harrisst...@stevenharris.info wrote: Flavio Is the destination of your backup pool tape? Have you confirmed with VALIDATE LANFREE on the server Are you seeing a proxied by message in the client log to indicate that the storage agent is in use? Is the *network* path configured as 1Gb - I'm suspecting you have a LAN backup and that the lan path has issues. HTH Regards Steve Steven Harris. TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi folks, I'm here, again, asking for help :) More I read, more doubts I have. I'm now implementing a TSM For SAN setup, to performance comparison with my currently LAN backup. I'll describe my scenario below, any doubt's feel free to ask me: - 2 Production nodes using RHEL 5.3 connected to SAN - 1 IBM DS4700 storage with 14 FC disks (13 raid5 + 1 hot-spare) - Each node have a emulex dual-port HBA - 2 Brocade TotalStorage fiber switches, with coherent zonings - Library is a IBM TS3100 LTO4 SAN, with only one drive Ok, i'm using TSM with LAN backups for a week, the transfer rate comes among 60~80GB per hour. The tape has a nominal write speed of 120MB/s that says me 430GB/h, ok.. this is a *nominal* speed, I was expecting something near 300GB/h, good enough for me. For these tests I've configured TSM Server on node1 and TSM Client on node2. Each node has 6 1Gbps NIC's, 4 to public network 2 for cluster-heartbeat + backups. With this setup I've got, as said above, 60~80GB/h. So, I decide to setup TSM for SAN.. Download a lot of docs/books and start reading/doing. I end up with: - Fabric zoning changes, isolating a HBA port on each dual-port cards for nodes - Installed StorageAgent on node2 - Installed TSM Client on node2 - - Configured the client to connect on storageagent - Redefine all my TSM Server setup - - Make Library as shared=yes, configure storage agent as a server, configure path, configure datawritepath=lanfree and so on... Ok, time to backup. And, for my surprise i got only ~500MB per minute.. I thought it very strange.. I've no idea what is the problem, I've tried with compression and without, DATAREADPATH=LAN and SAN, VirtualMountPoints or Physical ... Does anybody have an idea the reason of that bad transfer rate?? The servers are Samba Servers, with all kind of file and all size As I said before, I'm really new with TSM so is really possible that I've misconfigured something :) Anyway, thanks in advance, and any help will be appreciated. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 05:58:00
Re: TSM 5.5 using LANFree backup really slow
What is the nature of the data that you're backing up here? Large files/objects or lots of smaller files/objects? The classic recommendation for SAN backups direct to tape is that it's best used only for larger objects (eg database backups, TDPs or disk image etc) to ensure optimal streaming to tape. Backing up a file server with millions of individual small files direct to tape won't always produce a great overall throughput figure. /David Mc London, UK Sent from my iPhone On 1 Aug 2009, at 15:37, Flavio Junior bil...@gmail.com wrote: Hi Steve, thanks for answering... Yeah, the destination is tape, i see on StorageAgent console the connection to server and opening tape, during the backup I see the bytes increasing on Backup by LANFree: (but, this value is ALWAYS lower than the value of normal backup... i don't know if this is normal). VALIDATE LANFREE node policyset shows me that the node is capable to LANFree backups. During the backup (using webclient interface) I can see two speeds, well.. A screenshot of backup report is at link: http://img18.imageshack.us/img18/9278/backupz.jpg The screenshot is in portuguese but I think is easy to you guess what is each value... Time: 5:45 Hours Size: 181 Gb No compression Rede == Network Agregada == Aggregate, combination... (not sure how TSM show it) Ok, this is what I have... If need more info just let me know. Thanks again. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 3:51 AM, Steven Harrisst...@stevenharris.info wrote: Flavio Is the destination of your backup pool tape? Have you confirmed with VALIDATE LANFREE on the server Are you seeing a proxied by message in the client log to indicate that the storage agent is in use? Is the *network* path configured as 1Gb - I'm suspecting you have a LAN backup and that the lan path has issues. HTH Regards Steve Steven Harris. TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi folks, I'm here, again, asking for help :) More I read, more doubts I have. I'm now implementing a TSM For SAN setup, to performance comparison with my currently LAN backup. I'll describe my scenario below, any doubt's feel free to ask me: - 2 Production nodes using RHEL 5.3 connected to SAN - 1 IBM DS4700 storage with 14 FC disks (13 raid5 + 1 hot-spare) - Each node have a emulex dual-port HBA - 2 Brocade TotalStorage fiber switches, with coherent zonings - Library is a IBM TS3100 LTO4 SAN, with only one drive Ok, i'm using TSM with LAN backups for a week, the transfer rate comes among 60~80GB per hour. The tape has a nominal write speed of 120MB/s that says me 430GB/h, ok.. this is a *nominal* speed, I was expecting something near 300GB/h, good enough for me. For these tests I've configured TSM Server on node1 and TSM Client on node2. Each node has 6 1Gbps NIC's, 4 to public network 2 for cluster-heartbeat + backups. With this setup I've got, as said above, 60~80GB/h. So, I decide to setup TSM for SAN.. Download a lot of docs/books and start reading/doing. I end up with: - Fabric zoning changes, isolating a HBA port on each dual-port cards for nodes - Installed StorageAgent on node2 - Installed TSM Client on node2 - - Configured the client to connect on storageagent - Redefine all my TSM Server setup - - Make Library as shared=yes, configure storage agent as a server, configure path, configure datawritepath=lanfree and so on... Ok, time to backup. And, for my surprise i got only ~500MB per minute.. I thought it very strange.. I've no idea what is the problem, I've tried with compression and without, DATAREADPATH=LAN and SAN, VirtualMountPoints or Physical ... Does anybody have an idea the reason of that bad transfer rate?? The servers are Samba Servers, with all kind of file and all size As I said before, I'm really new with TSM so is really possible that I've misconfigured something :) Anyway, thanks in advance, and any help will be appreciated. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil --- --- -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 05:58:00
Re: TSM 5.5 using LANFree backup really slow
Hi David, Well FileServer is exact what i'm backup ;/ A lot of files with sizes between 100k and 20Mb. So, there is nothing that can be done to improve this, at least for 100GB/h? Just to point my head toward right direction.. LANFree backups or LAN backups. Thanks, -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 12:02 PM, David McClellanddavid.mcclell...@networkc.co.uk wrote: What is the nature of the data that you're backing up here? Large files/objects or lots of smaller files/objects? The classic recommendation for SAN backups direct to tape is that it's best used only for larger objects (eg database backups, TDPs or disk image etc) to ensure optimal streaming to tape. Backing up a file server with millions of individual small files direct to tape won't always produce a great overall throughput figure. /David Mc London, UK Sent from my iPhone On 1 Aug 2009, at 15:37, Flavio Junior bil...@gmail.com wrote: Hi Steve, thanks for answering... Yeah, the destination is tape, i see on StorageAgent console the connection to server and opening tape, during the backup I see the bytes increasing on Backup by LANFree: (but, this value is ALWAYS lower than the value of normal backup... i don't know if this is normal). VALIDATE LANFREE node policyset shows me that the node is capable to LANFree backups. During the backup (using webclient interface) I can see two speeds, well.. A screenshot of backup report is at link: http://img18.imageshack.us/img18/9278/backupz.jpg The screenshot is in portuguese but I think is easy to you guess what is each value... Time: 5:45 Hours Size: 181 Gb No compression Rede == Network Agregada == Aggregate, combination... (not sure how TSM show it) Ok, this is what I have... If need more info just let me know. Thanks again. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 3:51 AM, Steven Harrisst...@stevenharris.info wrote: Flavio Is the destination of your backup pool tape? Have you confirmed with VALIDATE LANFREE on the server Are you seeing a proxied by message in the client log to indicate that the storage agent is in use? Is the *network* path configured as 1Gb - I'm suspecting you have a LAN backup and that the lan path has issues. HTH Regards Steve Steven Harris. TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi folks, I'm here, again, asking for help :) More I read, more doubts I have. I'm now implementing a TSM For SAN setup, to performance comparison with my currently LAN backup. I'll describe my scenario below, any doubt's feel free to ask me: - 2 Production nodes using RHEL 5.3 connected to SAN - 1 IBM DS4700 storage with 14 FC disks (13 raid5 + 1 hot-spare) - Each node have a emulex dual-port HBA - 2 Brocade TotalStorage fiber switches, with coherent zonings - Library is a IBM TS3100 LTO4 SAN, with only one drive Ok, i'm using TSM with LAN backups for a week, the transfer rate comes among 60~80GB per hour. The tape has a nominal write speed of 120MB/s that says me 430GB/h, ok.. this is a *nominal* speed, I was expecting something near 300GB/h, good enough for me. For these tests I've configured TSM Server on node1 and TSM Client on node2. Each node has 6 1Gbps NIC's, 4 to public network 2 for cluster-heartbeat + backups. With this setup I've got, as said above, 60~80GB/h. So, I decide to setup TSM for SAN.. Download a lot of docs/books and start reading/doing. I end up with: - Fabric zoning changes, isolating a HBA port on each dual-port cards for nodes - Installed StorageAgent on node2 - Installed TSM Client on node2 - - Configured the client to connect on storageagent - Redefine all my TSM Server setup - - Make Library as shared=yes, configure storage agent as a server, configure path, configure datawritepath=lanfree and so on... Ok, time to backup. And, for my surprise i got only ~500MB per minute.. I thought it very strange.. I've no idea what is the problem, I've tried with compression and without, DATAREADPATH=LAN and SAN, VirtualMountPoints or Physical ... Does anybody have an idea the reason of that bad transfer rate?? The servers are Samba Servers, with all kind of file and all size As I said before, I'm really new with TSM so is really possible that I've misconfigured something :) Anyway, thanks in advance, and any help will be appreciated. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.392 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 05:58:00
Re: TSM 5.5 using LANFree backup really slow
LAN Free will be poor with this kind of data. What is your actual backup restore requirement? What's your backup window, how much data and how much changed data per day. Steven Steven Langdale Global Information Services EAME SAN/Storage Planning and Implementation ( Phone : +44 (0)1733 584175 ( Mob: +44 (0)7876 216782 ü Conference: +44 (0)208 609 7400 Code: 331817 + Email: steven.langd...@cat.com Flavio Junior bil...@gmail.com Sent by: ADSM: Dist Stor Manager ADSM-L@VM.MARIST.EDU 01/08/2009 17:10 Please respond to ADSM: Dist Stor Manager ADSM-L@VM.MARIST.EDU To ADSM-L@VM.MARIST.EDU cc Subject Re: [ADSM-L] TSM 5.5 using LANFree backup really slow Caterpillar: Confidential Green Retain Until: 31/08/2009 Hi David, Well FileServer is exact what i'm backup ;/ A lot of files with sizes between 100k and 20Mb. So, there is nothing that can be done to improve this, at least for 100GB/h? Just to point my head toward right direction.. LANFree backups or LAN backups. Thanks, -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 12:02 PM, David McClellanddavid.mcclell...@networkc.co.uk wrote: What is the nature of the data that you're backing up here? Large files/objects or lots of smaller files/objects? The classic recommendation for SAN backups direct to tape is that it's best used only for larger objects (eg database backups, TDPs or disk image etc) to ensure optimal streaming to tape. Backing up a file server with millions of individual small files direct to tape won't always produce a great overall throughput figure. /David Mc London, UK Sent from my iPhone On 1 Aug 2009, at 15:37, Flavio Junior bil...@gmail.com wrote: Hi Steve, thanks for answering... Yeah, the destination is tape, i see on StorageAgent console the connection to server and opening tape, during the backup I see the bytes increasing on Backup by LANFree: (but, this value is ALWAYS lower than the value of normal backup... i don't know if this is normal). VALIDATE LANFREE node policyset shows me that the node is capable to LANFree backups. During the backup (using webclient interface) I can see two speeds, well.. A screenshot of backup report is at link: http://img18.imageshack.us/img18/9278/backupz.jpg The screenshot is in portuguese but I think is easy to you guess what is each value... Time: 5:45 Hours Size: 181 Gb No compression Rede == Network Agregada == Aggregate, combination... (not sure how TSM show it) Ok, this is what I have... If need more info just let me know. Thanks again. -- Flávio do Carmo Júnior aka waKKu Florianópolis/SC - Brazil On Sat, Aug 1, 2009 at 3:51 AM, Steven Harrisst...@stevenharris.info wrote: Flavio Is the destination of your backup pool tape? Have you confirmed with VALIDATE LANFREE on the server Are you seeing a proxied by message in the client log to indicate that the storage agent is in use? Is the *network* path configured as 1Gb - I'm suspecting you have a LAN backup and that the lan path has issues. HTH Regards Steve Steven Harris. TSM Admin, looking for work, Sydney Australia Flavio Junior wrote: Hi folks, I'm here, again, asking for help :) More I read, more doubts I have. I'm now implementing a TSM For SAN setup, to performance comparison with my currently LAN backup. I'll describe my scenario below, any doubt's feel free to ask me: - 2 Production nodes using RHEL 5.3 connected to SAN - 1 IBM DS4700 storage with 14 FC disks (13 raid5 + 1 hot-spare) - Each node have a emulex dual-port HBA - 2 Brocade TotalStorage fiber switches, with coherent zonings - Library is a IBM TS3100 LTO4 SAN, with only one drive Ok, i'm using TSM with LAN backups for a week, the transfer rate comes among 60~80GB per hour. The tape has a nominal write speed of 120MB/s that says me 430GB/h, ok.. this is a *nominal* speed, I was expecting something near 300GB/h, good enough for me. For these tests I've configured TSM Server on node1 and TSM Client on node2. Each node has 6 1Gbps NIC's, 4 to public network 2 for cluster-heartbeat + backups. With this setup I've got, as said above, 60~80GB/h. So, I decide to setup TSM for SAN.. Download a lot of docs/books and start reading/doing. I end up with: - Fabric zoning changes, isolating a HBA port on each dual-port cards for nodes - Installed StorageAgent on node2 - Installed TSM Client on node2 - - Configured the client to connect on storageagent - Redefine all my TSM Server setup - - Make Library as shared=yes, configure storage agent as a server, configure path, configure datawritepath=lanfree and so on... Ok, time to backup. And, for my surprise i got only ~500MB per minute.. I thought it very strange.. I've no idea what is the problem, I've tried with compression and without, DATAREADPATH=LAN and SAN, VirtualMountPoints or Physical ... Does anybody have an idea the reason of that bad transfer rate?? The
