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Backup Exec 10D Slowness
Hello Experts,
Wondering if someone can help me with this frustrating issue.
I have a Dell PE2800 with SBS 2003 Standard installed. This is also my file server with approximately 1.2TB of data. I use Backup Exec 10D SBS Suite for backups. I recently purchased a Thecus N5200 Pro NAS to use for backup. Here is the setup configuration:
The N5200 is connected directly to NIC #2 of my server by Ethernet cable only with both having an IP Address in a different subnet as my network. Jumbo Frames are enabled and set to 16000. The N5200 is configured with a 1.9TB ISCSI partition and Microsoft ISCSI 2.0 is installed on the server. I can see and access the device fine.
In Backup Exec I have configured a Backup-to-Disk folder to the N5200. I set the backup to use software compression. When the backup starts it runs at 600-700MB/Min. After a couple of hours it's down to 500MB/Min. Couple hours later 400MB/Min. After a day or so it's running at 150MB/Min (still backing up just data, not exchange or anything). Obviously, at this speed I will never get a full backup over the weekend. I have tried researching the issue but all suggestions I can find do not help.
Any assistance will be greatly appreciated. Thanks
Steve
Wondering if someone can help me with this frustrating issue.
I have a Dell PE2800 with SBS 2003 Standard installed. This is also my file server with approximately 1.2TB of data. I use Backup Exec 10D SBS Suite for backups. I recently purchased a Thecus N5200 Pro NAS to use for backup. Here is the setup configuration:
The N5200 is connected directly to NIC #2 of my server by Ethernet cable only with both having an IP Address in a different subnet as my network. Jumbo Frames are enabled and set to 16000. The N5200 is configured with a 1.9TB ISCSI partition and Microsoft ISCSI 2.0 is installed on the server. I can see and access the device fine.
In Backup Exec I have configured a Backup-to-Disk folder to the N5200. I set the backup to use software compression. When the backup starts it runs at 600-700MB/Min. After a couple of hours it's down to 500MB/Min. Couple hours later 400MB/Min. After a day or so it's running at 150MB/Min (still backing up just data, not exchange or anything). Obviously, at this speed I will never get a full backup over the weekend. I have tried researching the issue but all suggestions I can find do not help.
Any assistance will be greatly appreciated. Thanks
Steve
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Are the NICs 1 Gbps ?
Have you considered using Rsync for windows or similar for the non-exchange stuff ?
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FYI. Backup Exec 11d is a free upgrade...
ASKER
>>Are the NICs 1 Gbps ?
Yes, sorry I forgot to mention that.
>>Have you considered using Rsync for windows or similar for the non-exchange stuff ?
Possibly, if I can't get Backup Exec to work. But I use it to backup Exchange, SQL, and have Remote Agents
Yes, sorry I forgot to mention that.
>>Have you considered using Rsync for windows or similar for the non-exchange stuff ?
Possibly, if I can't get Backup Exec to work. But I use it to backup Exchange, SQL, and have Remote Agents
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ASKER
Thanks for all the responses so far.
XuserX2000,
I was thinking about upgrading to 11d. Think that would resolve some of my issues?
I have now configured Trend to exclude the NAS device (S: Drive) and Veritas folder and will retest tonight. I was planning to eventually breakup the backup into separate jobs but still need to get the speed issue resolved.
rindi,
Since I have the NAS device configured with ISCSI it shows as a local drive on the server. I did not even attempt to load a remote agent on it. Not sure if I even can. It's something to explore it I can't get this working correctly.
XuserX2000,
I was thinking about upgrading to 11d. Think that would resolve some of my issues?
I have now configured Trend to exclude the NAS device (S: Drive) and Veritas folder and will retest tonight. I was planning to eventually breakup the backup into separate jobs but still need to get the speed issue resolved.
rindi,
Since I have the NAS device configured with ISCSI it shows as a local drive on the server. I did not even attempt to load a remote agent on it. Not sure if I even can. It's something to explore it I can't get this working correctly.
Don't know too much on iSCSI, but if it shows as a local drive, the agent probably isn't necessary.
ASKER
Update,
I ran a 153GB backup last night after changing the virus settings to exclude the NAS and Veritas folders.
Job took 8 hours 40 min.
Backup rate: 326 MB/Min
Verify rate: 1814 MB/Min
Basically no change from the same job a week ago
I reran the exact same job this morning to my tape drive
Job took 5 hours 55 min
Backup rate: 670 MB/Min
Verify rate: 966 MB/Min
Sure wish I could get the slow NAS backup rate figured out. Interesting the tape backup rates are twice as fast as the NAS and the NAS verify rates are twice as fast as the tape.
Tonight I am testing the same backup to NAS but am splitting it into 3 jobs. Let's see what happens here.
Steve
I ran a 153GB backup last night after changing the virus settings to exclude the NAS and Veritas folders.
Job took 8 hours 40 min.
Backup rate: 326 MB/Min
Verify rate: 1814 MB/Min
Basically no change from the same job a week ago
I reran the exact same job this morning to my tape drive
Job took 5 hours 55 min
Backup rate: 670 MB/Min
Verify rate: 966 MB/Min
Sure wish I could get the slow NAS backup rate figured out. Interesting the tape backup rates are twice as fast as the NAS and the NAS verify rates are twice as fast as the tape.
Tonight I am testing the same backup to NAS but am splitting it into 3 jobs. Let's see what happens here.
Steve
Good comparison.
WOuld the time of day affect the backups ?
WOuld the time of day affect the backups ?
ASKER
SysExpert,
Yes I'm sure it would however the slower NAS backup was run at 6pm and the faster tape backup at 9am during business hours.
Yes I'm sure it would however the slower NAS backup was run at 6pm and the faster tape backup at 9am during business hours.
ASKER
Update,
The same backup of 153GB to the NAS split into 3 jobs took 8 hours 50 min last night so that didn't help any.
One thought. If the NAS backup can verify at 1800MB/Min isn't that telling me there is no problem with the bandwidth and the issue with slowness must be writing to the drives? What do you think?
Steve
The same backup of 153GB to the NAS split into 3 jobs took 8 hours 50 min last night so that didn't help any.
One thought. If the NAS backup can verify at 1800MB/Min isn't that telling me there is no problem with the bandwidth and the issue with slowness must be writing to the drives? What do you think?
Steve
ASKER
The NAS device is a Thecus N5200Pro with 5 Seagate Enterprise drives configured as a Raid5.
Ok, so the NAS can read fast adn write at 1/6 the read speed. I think that is a little slow, but not unheard of.
he tape can backup faster, bt even streaming is only half the read sped of the NAS.
It sounds like you need a faster NAS, perhaps with onboard cache ?
he tape can backup faster, bt even streaming is only half the read sped of the NAS.
It sounds like you need a faster NAS, perhaps with onboard cache ?
ASKER
One other question I have is why does the backup start out fast at 700-800MB/Min and gradually slow down to 350MB/Min after 4 or 5 hours? I would think if the problem is slow writing to the drives it would start out slow.
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ASKER
Well I thought I found the issue yesterday. The hard drives in the enclosure still had the jumper on them which limits them to 1.5 Gbps instead of 3.0Gbps. I removed all the jumpers and retested the backup last night. Ran at 307MB/Min. Didn't help any.
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camowen,
Thanks for the detailed response.
The server is using 8 Seagate ST3300007LC 300GB 10K SCSI hard drives in a Raid 5.
I will test your suggestions as time permits.
Steve
Thanks for the detailed response.
The server is using 8 Seagate ST3300007LC 300GB 10K SCSI hard drives in a Raid 5.
I will test your suggestions as time permits.
Steve
ASKER
camowen,
I remember seeing a reference to the registry edit for fragmentation at one point but cannot locate it again. Could you please provide a link? Thanks.
Steve
I remember seeing a reference to the registry edit for fragmentation at one point but cannot locate it again. Could you please provide a link? Thanks.
Steve
for Backup Exec v10.1, with either hotfix 27 or SP1 or SP2 installed:
\hkey_local_machine\softwa
\hkey_local_machine\softwa
ASKER
Thanks.
ASKER
I just haven't had much time to explore this further. Ended up removing ISCSI and configuring the NAS on the network and in AD. Backups to it are still slow. Currently I am doing full backups to tape and incremental to the NAS. Seems to work out pretty well that way due to the fairly small size of the incremental backups.
Thanks to everyone for their suggestions.
I will close and split points.
Thanks to everyone for their suggestions.
I will close and split points.
ASKER