[comp.sys.amiga] All this talk about HD controllers

IO91461@MAINE.BITNET (Tom Nezwek) (08/03/90)

   There has been a lot of talk about "Which HD controller should I Buy"
Well I've had 3 different controllers in my a2500 and I have finally
settled on a Hardframe 2000.  I had a GVP and it measured about 250k per
sec. The 2090a (which i liked alot) measured in at 650k per sec. W/Quantum
my new Hardframe 2000 measures in at 695k per sec. (not really any faster
than the 2090a). One problem with the 2090a was that the boot partition
could not use the Fast File System and thus reeked of long boot-ups. This
is easily avoided by making the first partion very small; about 300k.
This partion would only mount one of the fastfilepartions and then
transfer full control to that fastfile partition's startup-sequence.
      One problem that I have encountered with the Hardframe is that
whenever I warm-boot or turn on the system for the first time, The
controller pauses at the initial white screen for say 8 seconds while
the 2090a only paused for about 2 seconds.  This may not seem like
much but it is a pain to wait when you are used to almost instant
execution of the boot process that the 2090a yeilded. If I had not
sold my 2090a prior to my aquireing the Hardframe 2000, I probably
would have kept the 2090a and bagged the Hardframe idea. I judge the
speed of the 2090a and Hard Frame as about equal and that I would have
prefered to work around 2090a's little problem rather than wait 6 seconds
for the Hardframe to boot.
       I know people with Trump cards and they agree that they are a
slower than the 2090a or Hardframe. I can't comment on the Fireball
only that It seems a little too good to be true, kind of like the
out-rageous claims that the Synchro Express made in its first showing.
Fireball claims DMA speed without DMA, So why haven't we seen a review of
it any Amiga mags? Sounds a little too good to be true. And Mast says
that their Fujitsu drives are as good as Quantums.. Ya another pipe-
dream. Quantum has a 2 year warranty. what is fujitsu's? 90 days?
      My main opinion is go with what is proven.. Why mess around? If
your buying a Hard Drive then your investing a good sum of money..
It dosen't make sense to take a chance on a Fireball or Advantage w/40meg
for say $499-$549, When you can get a Hardframe2000 & Quantum 40s for
$599. You could spend a lot of money and get a good controller or you
could end up with a dog slow one. Why take the chance when your only
talking about $50 more for a sure thing? Its not worth the chance IMHO.
The 2090a, the newer 2091 and Hardframe 2000 have all been proven as
lightning fast Hd controllers. I recommend all three. If the 2091 was
discounted enough to compete with the Hardframe's price then I'd get
a 2091 no question. If you have a 2090a I'd hold onto it and maybe
put a Quantum 40s on it to replace the 'dog slow' MFM rodime drive.
When all is said and done all 3 of these are DMA controls that work,
are proven fast, and don't rely on gimmicks that claim DMA speed. I had
a GVP, Its nice but not fast enough to compete with these.
 
    Lets try to avoid flames, I gave My time to inform people of what I
    ^^^^^^^^^^^^^^^^^^^^^^^^
Know and to not take un-needed risks. I am not saying that specific
controllers are bad, only that these 3 are proven. So I would appreciate
it if the flame club would take a vacation instead of hauling out the
slam-wagonTM on this one.
 
                     Well I hope this helps someone,
                              Tom Nezwek
 
PS: I know the 2090a has a slow down problem in 16 color Hi-res. But
    patch 2090a (PD) cures that with speeds of 270k per sec. Down
    from 650k per sec.  Still respectable speeds..

drtiller@uokmax.uucp (Donald Richard Tillery Jr) (08/04/90)

Just a comment on speeds.  I too have the Hardframe 2000.  I also have the GVP
A3001 accelerator (28Mhz) with a hard drive attached.  Currently I have a 40Meg
Quantum AND a SyQuest removable media on the Hardframe and an 80 Meg Quantum AT
on the accelerator.  What follows is a comparison of these hard drives to the
stock internal B2000(*) floppy (OFS) and to the regular and recoverable RAM
disks (done with DPerf2 in '030 mode with Burst, Cache, and FastROM enabled):

-------------------------------------------------------
DiskPerf2.   Testing RAM DISK:
 
Create Files:    37 files/sec.	  Directory Scan:    39 entries/sec.
Delete Files:    74 files/sec.	  Seek/Read Test:   370 seek/sec.
 
Read/Write Speed Test:  (bytes/sec.)
 
Buffer:  512     Read:    562,540     Write:    337,379
Buffer:   4k     Read:  2,788,765     Write:    873,813
Buffer:   8k     Read:  3,404,467     Write:    926,303
Buffer:  32k     Read:  3,971,878     Write:    985,503
Buffer:  64k     Read:  4,369,066     Write:    985,503
Buffer: 256k     Read:  4,766,254     Write:    985,503

-------------------------------------------------------
DiskPerf2.   Testing RAMB0: (880K Recoverable RAM disk)
 
Create Files:   125 files/sec.	  Directory Scan:   263 entries/sec.
Delete Files:   273 files/sec.	  Seek/Read Test:   620 seek/sec.
 
Read/Write Speed Test:  (bytes/sec.)
 
Buffer:  512     Read:    302,706     Write:    231,371
Buffer:   4k     Read:    762,046     Write:    503,155
Buffer:   8k     Read:    816,647     Write:    519,097
Buffer:  32k     Read:    891,646     Write:    537,180
Buffer:  64k     Read:    876,735     Write:    542,741
Buffer: 256k     Read:    891,646     Write:    549,568

-------------------------------------------------------
DiskPerf2.   Testing Empty: (880K OFS floppy)
 
Create Files:     0 files/sec.	  Directory Scan:   102 entries/sec.
Delete Files:     1 files/sec.	  Seek/Read Test:     2 seek/sec.
 
Read/Write Speed Test:  (bytes/sec.)
 
Buffer:  512     Read:     10,213     Write:      3,979
Buffer:   4k     Read:     14,081     Write:      5,874
Buffer:   8k     Read:     14,461     Write:      5,969
Buffer:  32k     Read:     14,465     Write:      5,944
Buffer:  64k     Read:     14,144     Write:      5,890
Buffer: 256k     Read:     14,229     Write:      5,887

-------------------------------------------------------
DiskPerf2.   Testing Hardframe:
 
Create Files:    19 files/sec.	  Directory Scan:   462 entries/sec.
Delete Files:    54 files/sec.	  Seek/Read Test:   294 seek/sec.
 
Read/Write Speed Test:  (bytes/sec.)
 
Buffer:  512     Read:    187,245     Write:     22,302
Buffer:   4k     Read:    298,909     Write:    174,182
Buffer:   8k     Read:    441,319     Write:    259,548
Buffer:  32k     Read:    605,413     Write:    400,219
Buffer:  64k     Read:    716,240     Write:    476,625
Buffer: 256k     Read:    695,342     Write:    508,031

-------------------------------------------------------
DiskPerf2.   Testing GVP 1: (A3001/28Mhz AT controller)
 
Create Files:    21 files/sec.	  Directory Scan:   417 entries/sec.
Delete Files:    52 files/sec.	  Seek/Read Test:   284 seek/sec.
 
Read/Write Speed Test:  (bytes/sec.)
 
Buffer:  512     Read:    104,439     Write:     21,929
Buffer:   4k     Read:    240,941     Write:    152,232
Buffer:   8k     Read:    310,597     Write:    208,050
Buffer:  32k     Read:    502,191     Write:    312,821
Buffer:  64k     Read:    613,920     Write:    403,919
Buffer: 256k     Read:    695,342     Write:    503,155

-------------------------------------------------------
DiskPerf2.   Testing Graphics: (SyQuest 44 Meg removable)
 
Create Files:    12 files/sec.	  Directory Scan:   442 entries/sec.
Delete Files:    54 files/sec.	  Seek/Read Test:   227 seek/sec.
 
Read/Write Speed Test:  (bytes/sec.)
 
Buffer:  512     Read:    119,156     Write:     19,213
Buffer:   4k     Read:    160,529     Write:    127,937
Buffer:   8k     Read:    255,252     Write:    186,579
Buffer:  32k     Read:    449,646     Write:    295,207
Buffer:  64k     Read:    525,338     Write:    352,344
Buffer: 256k     Read:    549,568     Write:    383,812

-------------------------------------------------------


From this I infer (at least with DPerf2) that data organized into a disk (or
pseudo-disk) format can't easily be read at much above 900K/sec.  When I saw
these results, I was even more pleased with my hard drive performance, and I
was pleasantly surprised by the speed of the SyQuest drive (now roughly two
weeks old).  Happy Hard Driving!.
 
 _______              __________
  _/____) '  __  /_/       /  '  /  / __  _      "N.I.N.J.A.J.I.S."-Me
  /  \___/__/___/ |_      /__/__/__/_/_-_/__/_/  The Displaced Razorback.
  ___________________________________________/   Founder:  IDGAFF Ltd.
The Amiga Computer - "...a more fiendish disputant than the Great
Hyperbolic Omni-Cognate Neutron Wrangler of Ciceronicus Twelve..."
-D.Adams;  Well, almost.