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Slow caching on ISA 2004

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Slow caching on ISA 2004 - 1.Dec.2005 6:49:00 PM   
buzzcut

 

Posts: 19
Joined: 21.Sep.2005
Status: offline 		I have caching set up on an ISA Server with mirrored drives and one separate drive for caching.We have a full T-1 going to the Internet, so bandwidth isn't a problem.The problem is the delivery of the page to Internet Explorer, it is much slower than we would anticiptate it to be.It seems to find the site quickly, but the actual loading of the page is very slow.I am using the firewall client on an XP workstation with 100/half-duplex connections.Are there any tweaks I can do with the caching?Are there any rules or filters that would make caching slow.Any help would be appreciated. If more information is needed,please let me know.Thank you.
Post #: 1
RE: Slow caching on ISA 2004 - 1.Dec.2005 7:34:36 PM   
LLigetfa

 

Posts: 2184
Joined: 10.Aug.2004
From: fort frances.on.ca
Status: offline 		100/half-duplex?

That is old hub technology.

What does a network trace show to be the source of the problem?

_____________________________

The School of Hard Knocks is a mean teacher. She gives the exam before the lesson.

(in reply to buzzcut)
Post #: 2
RE: Slow caching on ISA 2004 - 1.Dec.2005 7:49:51 PM   
buzzcut

 

Posts: 19
Joined: 21.Sep.2005
Status: offline 		Whether it is old hub technology or not isn't the problem, the switches are controlled by another division.People with 100 full-duplex connections and firewall client have the same problem.We are getting a mirrored port set up on the switch, I will put Ethereal on and check it out.

(in reply to LLigetfa)
Post #: 3
RE: Slow caching on ISA 2004 - 10.Feb.2006 6:32:28 AM   
Mmac

 

Posts: 3
Joined: 10.Feb.2006
Status: offline 		I have a similar problem. IE seems to find the page alright but it seems to take forever before the page is fully loaded. Is there any monitoring tool that lets you check loading times? or some monitoring that can be activated to see why pages are so slow.

Thanks

Murray

(in reply to buzzcut)
Post #: 4
RE: Slow caching on ISA 2004 - 10.Feb.2006 2:19:14 PM   
Sunny.C

 

Posts: 800
Joined: 5.Apr.2005
From: sydney
Status: offline 		I have the same problem... Do you guys get full speed if you bypass the isa server(directly connected to router)???

(in reply to Mmac)
Post #: 5
RE: Slow caching on ISA 2004 - 11.Feb.2006 3:07:01 AM   
buzzcut

 

Posts: 19
Joined: 21.Sep.2005
Status: offline 		I initially think it might be the hardware, we just received a new HP DL 320 ProLiant Server preloaded with
ISA 2004 Server.I am going to be installing this weekend, I will let you know the results.I tried to find something about tweaking the cache on ISA 2004. I could not find anything worthwhile.But both your syptoms sound comparable to what I was experiencing.

(in reply to Sunny.C)
Post #: 6
RE: Slow caching on ISA 2004 - 11.Feb.2006 6:11:13 AM   
Sunny.C

 

Posts: 800
Joined: 5.Apr.2005
From: sydney
Status: offline 		I am waiting to here from you on how it went with new hardware.
I moved my isa to new hardware and i still have the same problem.I backup and then restored my setting to new server maybe you should try build from scratch instead of migrating.

(in reply to buzzcut)
Post #: 7
RE: Slow caching on ISA 2004 - 13.Feb.2006 12:48:28 AM   
Sunny.C

 

Posts: 800
Joined: 5.Apr.2005
From: sydney
Status: offline 		I have fix the problem....
I just haven't confirmed on what it is exactly because it is busy hours at the moment at work.
It's either bad port on router or switch or bad cable, all that hard work for a stupid little problem
Oh well glad it's over..
I suggest checking you ports and cabling guys.
Good luck.

(in reply to Sunny.C)
Post #: 8
RE: Slow caching on ISA 2004 - 27.Apr.2006 8:13:15 AM   
bennyc@hafaguam.com

 

Posts: 13
Joined: 19.Dec.2005
Status: offline 		hey guys want better performance with caching, go to addins>web filters and disable diffserv and compression filters, works like a charm... and when you go to alerts no errors about compression or isa rejecting any non surported of some type compression...

(in reply to Sunny.C)
Post #: 9
RE: Slow caching on ISA 2004 - 27.Apr.2006 11:44:54 AM   
elmajdal

 

Posts: 5024
Joined: 16.Sep.2004
From: Lebanese in Kuwait
Status: offline
quote:

ORIGINAL: bennyc@hafaguam.com
and when you go to alerts no errors about compression or isa rejecting any non surported of some type compression...


There is already a hotfix for ISA 2004 SP2 that handles these alerts. u can download it now from M$
Update for HTTP issues in Internet Security and Acceleration Server 2004 Service Pack 2

_____________________________

Tarek Majdalani

MS Forefront Edge Security MVP
Website : http://www.elmajdal.net/ISAServer
New Section : http://www.elmajdal.net/Win2k8

(in reply to bennyc@hafaguam.com)
Post #: 10

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