What is the difference between volume filter driver and disk filter driver ? How can I do ? Thanks

NTFSD
1

What is the difference between volume filter driver and disk filter driver ?
We know a famous “diskperf” sample in the DDK document . It is a disk filter
driver .
If I want to modify “diskperf” a bit to get a volume filter driver . How can
I do ?

Could you tell me a material means ?

Thanks !

2

The difference is the level of the filter. For the diskperf example, you are
inserting above the disk class driver. For volume hooking you are being
inserted in the stacks which the volume manager creates for each volume
located on a physical disk.

There is a many to one relation here between the volumes and the physical
disk, obviously.

Pete

Peter Scott
Windows Filesystem and Device Driver Consulting
www.KernelDrivers.com
(303)546-0300

-----Original Message-----
From: xxxxx@lists.osr.com [mailto:bounce-202706-
xxxxx@lists.osr.com] On Behalf Of Leo
Sent: Thursday, March 03, 2005 7:15 PM
To: Windows File Systems Devs Interest List
Subject: [ntfsd] What is the difference between volume filter driver and
disk filter driver ? How can I do ? Thanks , anyway .

What is the difference between volume filter driver and disk filter driver
?
We know a famous “diskperf” sample in the DDK document . It is a disk
filter
driver .
If I want to modify “diskperf” a bit to get a volume filter driver . How
can
I do ?

Could you tell me a material means ?

Thanks !

Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

You are currently subscribed to ntfsd as: xxxxx@kerneldrivers.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

3

Thanks

But if I want to modify “diskperf” a bit to get a volume filter driver . How
can I do ?

Who had reserached the “diskperf” sample in the DDK document ?

“Peter Scott” wrote in message
news:xxxxx@ntfsd…
>
> The difference is the level of the filter. For the diskperf example, you
> are
> inserting above the disk class driver. For volume hooking you are being
> inserted in the stacks which the volume manager creates for each volume
> located on a physical disk.
>
> There is a many to one relation here between the volumes and the physical
> disk, obviously.
>
> Pete
>
> Peter Scott
> Windows Filesystem and Device Driver Consulting
> www.KernelDrivers.com
> (303)546-0300
>
>
>> -----Original Message-----
>> From: xxxxx@lists.osr.com [mailto:bounce-202706-
>> xxxxx@lists.osr.com] On Behalf Of Leo
>> Sent: Thursday, March 03, 2005 7:15 PM
>> To: Windows File Systems Devs Interest List
>> Subject: [ntfsd] What is the difference between volume filter driver and
>> disk filter driver ? How can I do ? Thanks , anyway .
>>
>> What is the difference between volume filter driver and disk filter
>> driver
>> ?
>> We know a famous “diskperf” sample in the DDK document . It is a disk
>> filter
>> driver .
>> If I want to modify “diskperf” a bit to get a volume filter driver . How
>> can
>> I do ?
>>
>> Could you tell me a material means ?
>>
>>
>> Thanks !
>>
>>
>>
>>
>>
>> —
>> Questions? First check the IFS FAQ at
>> https://www.osronline.com/article.cfm?id=17
>>
>> You are currently subscribed to ntfsd as: xxxxx@kerneldrivers.com
>> To unsubscribe send a blank email to xxxxx@lists.osr.com
>
>
>

4

Leo wrote:

What is the difference between volume filter driver and disk filter driver ?
We know a famous “diskperf” sample in the DDK document . It is a disk filter
driver .
If I want to modify “diskperf” a bit to get a volume filter driver . How can
I do ?

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Peter
Senior Distinguished List Slave