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How many data (MB/GB) go through the HBA-card
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12-24-2010 12:06 AM
12-24-2010 12:06 AM
How many data (MB/GB) go through the HBA-card
How many data (MB/GB) go through the HBA-card
This server have 2 HBA cards and I want to know the throughput of each card.
underlying question:
every day a backup takes about 1,5 hours only sunday at takes 4/5 hours.
so, I want to monitor
Paul.
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12-24-2010 11:23 AM
12-24-2010 11:23 AM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
check the HBA :
ioscan -fnC fc
fcmsutil /dev/HBA_CARD vpd
mikap
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12-24-2010 02:49 PM
12-24-2010 02:49 PM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
is it the same backup you are running? is it not just a full backup on a sunday and an incremental backup daily?
If its the same i would look at not just the HBA horughput, you could do with using glance and see what else the system is doing
Andy
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12-25-2010 02:39 AM
12-25-2010 02:39 AM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
output is:
root# fcmsutil /dev/td0 vpd
V I T A L P R O D U C T D A T A
--------- ------------- -------
Product Discription :'A6795A 2Gbps/1Gbps Fibre Channel 4X PCI HBA'
Part number :'A6795-62002'
Engineering Date Code :'B-4524'
Part Serial number :'A56A00348784'
Misc. Information :'PW=15W'
Mfd. Date :'A-4528'
Check Sum : 0x3f
EFI version : '001.17'
Asset Tag :'NA'
But wat is using?
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12-25-2010 02:43 AM
12-25-2010 02:43 AM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
Yes, it is the same backup (always a full oracle backup)
more info, this full backup is started every 3 hours, and all backups (except 1) is ready < 2 hours normaly 1,5)
Paul.
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12-25-2010 02:33 PM
12-25-2010 02:33 PM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
Bill Hassell, sysadmin
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01-20-2011 03:50 AM
01-20-2011 03:50 AM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
Backup is from oracle to disk (san). And the same backup every 3 hours.
Iâ m aware that this is complex, because also the DP-cell-manager is involved (IDB).
What I want to know (to log) what really the throughput is at every backup time.
And from every HBA card.
What I see in DP rman session log is.
It takes (at problem backup) more time (minutes) to backup 1 oracle datafile.
So, I want (also) to know the throughput of each HBA.
Paul.
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01-20-2011 05:56 AM
01-20-2011 05:56 AM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
I've seen this kind of happening on backups, where the DBA's started doing exports and other massive copying of a couple databases (for dev/testing) at the same time the backup process was running and hitting the same DB/same disk.
Just a thought,
Rita
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01-20-2011 06:00 AM
01-20-2011 06:00 AM
Re: How many data (MB/GB) go through the HBA-card
Re: How many data (MB/GB) go through the HBA-card
You seem to have the classic older Tachyon XL2 Cards. Card is capabale of 2Gbps or 1Gbps. Check link speed via (fcmsutil /dev/tdX}grep -i "link speed"). A 2Gbps link will give you a maximum thrpughput of 180 MEGABYTEs/sec, a 1Gbps - of course about half that. But realistically -- these throughputs are rarely sustained as the bottleneck is usually the RAID layout on your SAN Array.
Now to your other question of why you daily backups takelonger on a weekend than on a weekday. Assuming the scripts used are the same, RMAN streams per channel are the same too -- then I can only surmise than on a Sunday -- your destination SAN disk for your backups is likely serving other disk i/o intensive activities too.
What kind of SAN disks are involved if you don't mind? Do you administer your SAN Array yourself or a different human?
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