Nekonomicon - tomvos

tomvos
Donor
From Germany
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Indy with SCSI2SD setup? at March 12, 2016, 4:23 a.m...

Hi,

I have the SCSI2SD board running in one of my Indys. I use exactly the parameters Dexter1 suggested:
- SCSI-ID = 1
- Enable Parity = ON
- Enable SCSI2 Mode = ON
The SD-Card is Sandisk Ultra 8GB Class 10. However I get some sync error messages during certain steps. Common messages are like

Code: Select all


   - sc0,1,0: SYNC negotiation error, resetting SCSI bus.
   

   - NOTICE: wd93 SCSI Bus=0 ID=1: SYNC negotiation error, resetting bus.

I'm not sure how severe this errors are. But it looks like the system is installing IRIX 6.5.15 without any problems.

Regarding the SCSI terminators:

One terminator is at the end of the internal SCSI cable.
I've put another terminator on the external SCSI connector at the backside of the Indy.
The SCSI2SD terminator resistors have been removed since it's not the endpoint of the SCSI chain.

I had much more problems with this setup when using earlier releases of the firmware. Release 4.6 seems to work fine. Furthermore, using an external SCSI terminator seems to be good idea. I hope this helps a little bit.

Any suggestion how to avoid the SYNC negotiation error are welcomed.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Germany
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Indy with SCSI2SD setup? at March 13, 2016, 12:12 a.m...

Ah, thanks for the hint. Then I'll simply ignore this slight annoyance.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Germany
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Indy with SCSI2SD setup? at March 16, 2016, 9:16 a.m...

astouffer wrote: Any difference in speed when using this compared to an "old fashioned" drive?

Well, it's quite slow. But then, it's quieter and creates less heat, too.

I've run diskperf to verify my subjective feeling of "it's quite slow":

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   Empress 2# diskperf -W -D -n SCSI2SD-Indy150PC -t 10 -c 100m testfile
   

   #---------------------------------------------------------
   

   # Disk Performance Test Results Generated By Diskperf V1.2
   

   #
   

   # Test name     : SCSI2SD-Indy150PC
   

   # Test date     : Wed Mar 16 08:00:28 2016
   

   # Test machine  : IRIX Empress 6.5 01091820 IP22
   

   # Test type     : XFS data subvolume
   

   # Test path     : testfile
   

   # Request sizes : min=4096 max=4194304
   

   # Parameters    : direct=1 time=10 scale=1.000 delay=0.000
   

   # XFS file size : 104857600 bytes
   

   #---------------------------------------------------------
   

   # req_size  fwd_wt  fwd_rd  bwd_wt  bwd_rd  rnd_wt  rnd_rd
   

   #  (bytes)  (MB/s)  (MB/s)  (MB/s)  (MB/s)  (MB/s)  (MB/s)
   

   #---------------------------------------------------------
   

   4096    0.72    0.88    0.62    0.80    0.72    0.86
   

   8192    1.10    1.02    0.66    1.01    0.53    1.00
   

   16384    1.26    1.12    0.39    1.12    0.07    1.10
   

   32768    1.32    1.17    0.69    0.98    0.22    1.17
   

   65536    1.14    1.23    0.96    1.19    0.31    1.22
   

   131072    1.30    1.25    1.06    1.18    0.57    1.25
   

   262144    1.28    1.27    1.26    1.27    0.95    1.16
   

   524288    1.09    1.28    1.25    1.24    1.09    1.09
   

   1048576    1.30    1.28    1.28    1.28    1.30    1.19
   

   2097152    1.42    1.27    1.33    1.28    1.08    1.28
   

   4194304    1.47    1.26    1.45    1.20    1.34    1.28

Compared to a SSD with an ACARD ARS-2320S adapter in my O2 (R12000, 300MHz):

Code: Select all


   Interceptor 5% diskperf -W -D -n EVO840 -t10 -c100m /usr/people/thomas/testfile
   

   #---------------------------------------------------------
   

   # Disk Performance Test Results Generated By Diskperf V1.2
   

   #
   

   # Test name     : EVO840
   

   # Test date     : Mon Mar 14 11:00:54 2016
   

   # Test machine  : IRIX Interceptor 6.5 07202013 IP32
   

   # Test type     : XFS data subvolume
   

   # Test path     : /usr/people/thomas/testfile
   

   # Request sizes : min=4096 max=4194304
   

   # Parameters    : direct=1 time=10 scale=1.000 delay=0.000
   

   # XFS file size : 104857600 bytes
   

   #---------------------------------------------------------
   

   # req_size  fwd_wt  fwd_rd  bwd_wt  bwd_rd  rnd_wt  rnd_rd
   

   #  (bytes)  (MB/s)  (MB/s)  (MB/s)  (MB/s)  (MB/s)  (MB/s)
   

   #---------------------------------------------------------
   

   4096    9.05    8.14    9.13    7.31    9.05    7.40
   

   8192   12.98   12.31   13.84   11.49   13.74   11.45
   

   16384   17.65   16.18   18.68   15.41   18.60   15.35
   

   32768   22.11   19.47   22.67   18.91   22.68   18.90
   

   65536   25.17   22.54   25.44   22.15   25.39   22.14
   

   131072   26.92   23.71   26.97   23.32   26.96   23.30
   

   262144   27.85   24.50   27.89   24.13   27.88   24.12
   

   524288   28.31   24.79   28.37   24.63   28.28   24.64
   

   1048576   28.87   24.96   28.88   24.94   28.84   24.95
   

   2097152   30.00   26.00   30.08   25.94   29.97   25.99
   

   4194304   30.61   26.58   30.62   26.57   30.60   26.58

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Germany
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Can´t get IRIX 6.5.22 to install on Indigo R4400 at March 20, 2016, 11:03 p.m...

FlasBurn wrote: If I then start the installation, ARCS copies the miniroot over (GUI) and then when it wants to copy over IP20 from the CD I get a read error, but the drive and CD work on the O2.

I'm assuming you've used the internal CD-ROM on your O2. Perhaps the external CD-ROM or the SCSI cable has some problem. To avoid this, you could make your O2 act as an installation server. There's a good documentation how to do this in the wiki . Just change the 64-bit stuff to 32-bit stuff for your O2, e.g. fx.ARCS instead of fx.64 etc.
Perhaps this will help to avoid the read error on the Indigo.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Aachen, Germany, Europe
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Archaeological dig: old Indys from Acclaim Entertainment unearthed at Nov. 27, 2016, 2:53 a.m...

You have a boxed set of Nichimen N-World? I wanted to see this in action for a long time.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Aachen, Germany, Europe
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Nichimen Graphics N-World 3 at Feb. 14, 2017, 11:03 a.m...

Thanks a lot. Your work in showing the good old software in its former glory is well appreciated.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Aachen, Germany, Europe
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Nichimen Graphics N-World 3 at Feb. 14, 2017, 10:32 p.m...

By the way, is it only me, or are these coloured buttons something you would like to see making a reappearance in todays software? Somehow I feel feed up with sleek uniform mono-coloured user interfaces.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Aachen, Germany, Europe
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Installing Photoshop 3.0.1 at May 15, 2017, 11:51 p.m...

Try to search for DPS and Display Postscript on nekochan. I think DPS was removed from later IRIX releases after 6.5.22. I remember I had to install this manually, but I'm not sure whether the required files had been on the Photoshop CD or on an older IRIX CD set.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Aachen, Germany, Europe
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Internals of the duel R14k CPU modules, upgrading modules by replacing CPUs at June 4, 2017, 11:32 a.m...

You might want to check the wiki ... just to put the topic at rest.

The R12000 has 600 IO-pins and uses 2.3 volts.
The R14000 has 527 IO-pins and uses 1.5 volts.

Where subtlety fails us we must simply make do with cream pies.

tomvos
Donor
From Aachen, Germany, Europe
Who joined July 4, 2008, 1:08 p.m.

Wrote on the subject of Scatter Background at June 20, 2017, 8:41 a.m...

Where subtlety fails us we must simply make do with cream pies.

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