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Bart's Stuff Test 5
Version 5.1.3
Created: Mar 11, 2003
Updated: Apr 11, 2003
:: Introduction [#intro]
:: Some history [#history]
:: Supported Platforms [#platforms]
:: Practical use of bst5 [#use]
:: Screen shots [#screen]
:: Buy the Pro Edition [#buy]
:: Installation [#install]
:: Faq [#faq]
:: Changes [#changes]
> Introduction
[#intro]
Bst5 (Bart's Stuff Test v5) is a small win32 application for heavily
stress testing storage devices. Bst5 supports testing at file and
device level.
File level support enables you to test any local or remote volume by
file access. This makes it possible to test almost any storage device.
As long as the operating system can write or read files from it, you
can use bst5 to test it. In bst5 this is seen a "high" level test, you
write/read data to/from a file using the file system support from your
operating system.
Device level support enables you to test local devices directly block-
by-block. You can use this to test any removable or fixed logical
drive, physical hard disk, or tape device. In bst5 this is seen a
"low" level test, bst5 writes/reads data directly to/from the storage
device without the use of any file system. In other word, the storage
device or media does not need to be partitioned or formatted before
testing. If any file systems exists on a storage device or media, a
non-read only test will overwrite any data on it.
Bst5 supports very large volumes, up to 16 exabyte (17.179.869.184
Gigabyte) enough to last for at least 30 years.
> Some history
[#history]
Bst has been around for a while. The first Dos version is from 1995.
The version 1 until 4 where never made "public". Bst5 is the first
real win32 version. It is created with the experience of the 4
previous bst versions, together with scsitool and disktool.
> Supported Platforms
[#platforms]
Bst5 runs on:
* Windows 95*
* Windows 98*
* Windows ME*
* Windows NT 4.0
* Windows 2000
* Windows XP
* Windows Preinstalled Environment (booted from CD-Rom)
* ERD Commander 2002 (booted from CD-Rom)
* Device level test is not supported on these platforms.
As you can see bst5 does not run in Dos. It is my opinion that storage
testing tools running in dos will disappear in near future. Why?
Because most of these Dos based tools (like disktool) are limited.
They use extended BIOS calls to access the device. Some modern BIOSes,
using very fast hard disks, have a maximum transfer rate of around
7MB/s. This is bad news if you want to stress test a hard disk that is
capable of doing around 50MB/s.
> Practical use of bst5
[#use]
Can be done using the free edition...
1. Test a local hard disk of any system which already has a windows
operating system.
Boot the OS on the system. Run bst5 and start testing on path
"c:\". If the system has more hard disk volumes start a second
instance of bst5 and let it test on path "d:\" and so on. Bst5
will use almost all free space available for testing.
2. Test a local CD-Rom or DVD drive of any system which already has a
windows operating system.
You will have to prepare a CD-Rom or DVD medium for this. Run bst5
on a system with a CD-Rom or DVD recorder. Click "options" and
select operation "write pattern" and enter the maximum size valid
for your media. For example, a CD recordable media can hold up to
700MB and a DVD recordable media can hold up to 4.5GB. Click "OK",
enter a file and path for example "c:\tmp\bst1.tmp" and click
"Start". Bst5 will now write a stuff pattern file called
c:\tmp\bst1.tmp and stop. Next record this file on your CD or DVD
media. Label it "Stuff test file media".
With this media you can test any CD-Rom or DVD drive of any system
which already has a windows operating system. Boot the OS already
on the system. Start bst5, enter the path to ":\bst1.tmp" (where
is the drive letter of your CD-Rom or DVD drive) or click "...",
select folder and browse to the file "bst1.tmp". Make sure you
check "Read only". Hit "start" and bst5 will read the file
bst1.tmp until your stop it.
3. Test server, network and workstations.
Testing will include:
+ Server hard disk
+ Server network interface
+ Network hub/switches
+ Workstation network interface
On each of the workstations start bst5. Enter a path to a share on
the server, for example "\\server1\share" and hit "start". All
workstations will now test the server. Each workstation uses it's
own file like "bst5*.tmp". When you have more hard disk volumes on
the server divide the workstations.
Warning: this test will put very high load on your server and
network. Other users will get very slow server/network responses!
Requires the Pro edition...
1. Test tape media inter-exchange compatibility. On the first system
with a tape drive, use bst5 to create a stuff pattern media using
"write pattern" operation. You can enter a size for the pattern
image, for example 400mb, Or you can leave the size empty, then
bst5 will write until end of media. Take this media to a second
system with a tape drive that is capable of reading the media. Run
bst5, check "Read only" and start on the tape device.
You can mix all of these test, for example you can:
* Run first bst5 to test a local hard disk and a second bst5 to test
a CD-Rom or DVD drive.
* With "3) Test server, network and workstations" you can also start
a second bst5 on the workstations to also test local hard and/or
CD/DVD drives.
* Or even start bst5 on the server to test it's tape device (pro
edition).
> Screen shots
[#screen]
Some screen shots, just click on the links below...
1. Main screen [screen1.gif]
2. Testing local folder "C:\" at file level [screen5.gif]
3. Testing network folder at file level [screen7.gif]
4. Select device dialog (*) [screen2.gif]
5. Testing harddisk device (*) [screen3.gif]
6. Testing tape device (*) [screen4.gif]
7. Testing CD-Rom device (*) [screen6.gif]
* Pro Edition only!
> Buy the Pro Edition
[#buy]
Device level testing requires buying the "Pro Edition"
[/bst/buypro.php]...
> Installation
[#install]
There is no need to install Bst5, just unpack bst5.exe from the
archive file and start it...
> Faq
[#faq]
1. Q: Why am I not seeing my tape drive in the device list?
A: In Windows NT 4.0 you need to add a tape driver.
If you have arcserve installed, you have to stop the arcserve tape
engine.
2. Q: Is the way that bst5 writes and reads a hard disk similar to a
way a normal user does? Does bst5 "emulate" a normal user?
A: No! Bst5 puts a non-interrupted 100% load on the tested storage
device. A normal user does not do that. Imagine this: it would
take a year before a normal user has his hard disk full. Bst5
writes it full within half an hour.
3. Q: Can bst5 break down my harddisk?
A: Good question, no bst5 does not break down your harddisk. But
when you use bst5 a lot (and I mean really a lot) on the same disk
it can shorten the MTBF (mean time between failure). This also
means that if your hard disk, that was running fine, does break
down during bst5 testing, it was already faulty before you started
testing, but you never stressed it hard enough to show any
failures.
4. Q: Sometimes bst5 reports that my tape drive's capacity is 0
bytes, how come?
A: Not sure why it happens, but bst5 will go and write to the
media anyway...
> Changes
[#changes]
Version 5.1.3
* Added quick speed test operation.
* Tape devices (like DLT) some times return volume size is 0 bytes,
bst5 would reduce the blocksize down to 8KB. Fixed.
* Some minor changes.
Version 5.1.2
* Attempt to write passed end-of-tape on second loop. Fixed.
* Smart read sometimes enables pattern compare on media that does
not have a valid stuff pattern on it. Fixed.
* Changed license files. License dialog now does word wrap.
Version 5.1.1
* Bst5 left bst5*.tmp files of 0 bytes behind, fixed it.
* When trying to start "c:\" in readonly mode, it came up with a
strange error message. Now it says open() failed, that's OK.
Version 5.1.0
* Added license information.
* Several small fixes.
* Improved error messages.
Version 5.0.5-BETA
* Made a lot of changes and fixes, to many to keep a list. There is
not much code from the 5.0.2-BETA version that is unchanged!
* Added support for testing media inter-exchange (write stuff
pattern and smart read).
Copyright (c) 2002-2003 Bart Lagerweij. All rights reserved.