Generalized Performance Characteristics - Seagate ST32430N - Hawk 2.1 GB Hard Drive Product Manual

10
_____________________________________________________________________________________
5.3

Generalized performance characteristics

Minimum Sector Interleave (All Hawk 2LP models)
Data transfer rate (< 1 sector) - 512 Byte Sector, Data Buffer To/From Disc Media:
ST32430N/ND
Min. [4]* 4.48 MByte/sec
Avg. [4] 6.50 MByte/sec
Max. [4] 7.78 MByte/sec
Data Transfer Rate (< 1 Track) - 512 Byte Sector, Data Buffer To/From Disc Media:
ST32430N/ND
Min. [4] 3.76 MByte/sec divided by (Interleave Factor)
Avg. [4] 5.46 MByte/sec divided by (Interleave Factor)
Max. [4] 6.54 MByte/sec divided by (Interleave Factor)
SCSI Interface Data Transfer Rate (Asynchronous) [5] (All Hawk 2LP models)
-Maximum Instantaneous
-Maximum Average
The remainder of the specifications of section 5.3 apply to all Hawk 2LP models:
Sector Sizes 512 byte user data blocks (default)
Variable (256 to 4096 bytes per sector) in even number of bytes per sector. If n (number of
bytes per sector) is odd, then n-1 will be used.
Synchronous Transfer Rate
From 1.25 MBytes/sec to 10.0 MBytes/sec (See section 11.5.)
Read/Write consecutive sectors on a track
Flaw reallocation performance impact (For flaws reallocated at format
time using the spare sectors per track reallocation scheme.) [10]
Flaw reallocation performance impact (For flaws reallocated at format time
using the spare sectors per cylinder reallocation scheme.) [10]
Flaw reallocation performance impact (For flaws reallocated at format
time using the spare tracks per volume reallocation scheme.)
Overhead time for head switch (512 byte sectors)
Overhead time for one track cylinder switch
Average rotational latency
*[ ] Notes listed in Section 5.3.1
Product Manual - Hawk 2LP Family SCSI-2 (Volume 1), Rev. A
ST31230N/ND
4.23 MByte/sec
5.79 MByte/sec
7.09 MByte/sec
N family
5.2 [9] MBytes/sec
3.1 MBytes/sec
1 to 1
ST31230N/ND
3.56 MByte/sec
4.87 MByte/sec
5.96 MByte/sec
ND family
3.3 MBytes/sec
2.4 MBytes/sec
YES
Negligible
Negligible
35 ms (typical)
1 ms
<3 ms Typical
5.54 ms