ADSM-L

RE: network data throughput

1999-10-27 03:44:00
Subject: RE: network data throughput
From: Van Ruler, Ruud R SSI-TSEA-332 <Ruud.R.vanRuler AT is.shell DOT com>
To: 'John Sorensen' <sorensen AT storsol DOT com>
Date: Wednesday, October 27, 1999 7:44 AM
>John
>
>here are the figures ...
>
>
>ANE4952I (Session: 1186, Node: RIJSAP92)  Total number of
>                       objects inspected:   57,115
>
>21-10-1999 23:01:51   ANE4954I (Session: 1186, Node: RIJSAP92)  Total
number
>of
>                       objects backed up:      478
>
>21-10-1999 23:01:51   ANE4958I (Session: 1186, Node: RIJSAP92)  Total
number
>of
>                       objects updated:          0
>
>21-10-1999 23:01:51   ANE4960I (Session: 1186, Node: RIJSAP92)  Total
number
>of
>                       objects rebound:          0
>
>21-10-1999 23:01:51   ANE4957I (Session: 1186, Node: RIJSAP92)  Total
number
>of
>                       objects deleted:         51
>
>21-10-1999 23:01:51   ANE4959I (Session: 1186, Node: RIJSAP92)  Total
number
>of
>                       objects failed:           0
>
>21-10-1999 23:01:51   ANE4961I (Session: 1186, Node: RIJSAP92)  Total
number
>of
>                       bytes transferred:     3.35 MB
>
>21-10-1999 23:01:51   ANE4963I (Session: 1186, Node: RIJSAP92)  Data
>transfer
>                       time:                    0.11 sec
>
>21-10-1999 23:01:51   ANE4966I (Session: 1186, Node: RIJSAP92)  Network
data
>
>                       transfer rate:        34,935.96 KB/sec
>
>21-10-1999 23:01:51   ANE4967I (Session: 1186, Node: RIJSAP92)  Aggregate
>data
>                       transfer rate:         32.59 KB/sec
>
>21-10-1999 23:01:51   ANE4968I (Session: 1186, Node: RIJSAP92)  Objects
>
>                       compressed by:                   71%
>
>21-10-1999 23:01:51   ANE4964I (Session: 1186, Node: RIJSAP92)  Elapsed
>
>                       processing time:            00:01:45
>
>
>
>
>=======================================================
>             Ruud van Ruler
>Shell Services International BV - TSEA-332
>Our Data Storage Management home page: http://sww2.shell.com/dstorage/
>> Room 2A/D07
>> Dokter van Zeelandstraat 1, 2285 BD Leidschendam NL
>Tel : 070 - 3034644  /  Fax : 070 - 3034012
>Email Internet: ruud.r.vanruler AT is.shell DOT com
>                          r_van_ruler AT compuserve DOT com
>Email X400:/S=vanRuler /I=R /C=GB /A=GOLD /P=Shell /O=IS
>
>
>                                                            R.vanRuler
>================================================================
>
>
>-----Original Message-----
>From: John Sorensen [mailto:sorensen AT STORSOL DOT COM]
>Sent: 27 October 1999 15:21
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: Re: network data throughput
>
>
>Can we see the rest of the display at the end of the backup, including
total
>amount of data moved and the time it took to move it (in other words, the
>"inputs" to the division?)
>
>John Sorensen
>SSSI
>
>-----Original Message-----
>From: Van Ruler, Ruud R SSI-TSEA-332 <Ruud.R.vanRuler AT IS.SHELL DOT COM>
>To: ADSM-L AT VM.MARIST DOT EDU <ADSM-L AT VM.MARIST DOT EDU>
>Date: Wednesday, October 27, 1999 1:43 AM
>Subject: network data throughput
>
>
>>ADSM guru's
>>
>>Could someone explain me the real network data throughput (without
>>compression) of the a ADSM connection?
>>
>>e.g.
>>18-10-1999 23:01:42   ANE4966I (Session: 327, Node: RIJSAP90)  Network
data
>>
>>                       transfer rate:        34,935.96 KB/sec
>>
>>Please observe :
>>
>>Our server is connected with a 100 Mb/s (Mega bit) connection. This is 100
>>Mb per sec!
>>Now since there are 8 bits in a Byte this means that the transfer rate of
>>the link is 100/8 = 12.5 MB/s (Byte)
>>Or  12,800.00 KByte (The multiplying factor for network data is 1024
>instead
>>of 1000, but the link is based on 1000 so there are a few minor errors in
>>the computations.)
>>
>>Now let's compare this theoretical maximum to reality shall we.
>>
>>Theoretical maximum             12,800.00 KB/sec         43.9 GB/Hour
>>Practical reality                        10,000.00 KB/sec        34.3
>>GB/Hour
>>in our example                  34,935.96 KB/sec        119.9 GB/Hour
>>
>>As you can see, the  values greatly exceed the theoretical maximum.
>>How is this possible?
>>or do we misinterpreted "Network data transfer rate: 34,935.96 KB/sec" ?
>>
>>thanks in advance
>>
>>
>>=======================================================
>>             Ruud van Ruler
>>Shell Services International BV - TSEA-332
>>Our Data Storage Management home page: http://sww2.shell.com/dstorage/
>>> Room 2A/D07
>>> Dokter van Zeelandstraat 1, 2285 BD Leidschendam NL
>>Tel : 070 - 3034644  /  Fax : 070 - 3034012
>>Email Internet: ruud.r.vanruler AT is.shell DOT com
>>                          r_van_ruler AT compuserve DOT com
>>Email X400:/S=vanRuler /I=R /C=GB /A=GOLD /P=Shell /O=IS
>>
>>
>>                                                            R.vanRuler
>>================================================================
>>
>
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