Tape head assembly for linear tape open
A tape head assembly includes a set of data readers configured to simultaneously read data from a set of adjacent data tracks of a tape storage medium, each data track having a width; wherein the width of each data reader of the set along a lateral extension of the tape head assembly is equal to or less than the width of a data track wherein the lateral extension of the tape head assembly is orthogonal to a longitudinal extension of the tape storage medium when arranged in a tape drive containing the tape head assembly spanning at least the set of data tracks during reading; and a servo reader arrangement containing at least one servo reader arranged laterally offset from one of the data readers by less than the width of a data track.
1. A tape head assembly, comprising:
a set of data readers configured to simultaneously read data from a set of adjacent data tracks of a tape storage medium, each data track having a width;
wherein the width of each data reader of the set along a lateral extension of the tape head assembly is equal to or less than the width of a data track wherein the lateral extension of the tape head assembly is orthogonal to a longitudinal extension of the tape storage medium when arranged in a tape drive containing the tape head assembly spanning at least the set of data tracks during reading; and
a servo reader arrangement containing at least one servo reader arranged laterally offset from one of the data readers by less than the width of a data track,
wherein each servo reader of the servo reader arrangement is offset from the one data reader by an offset=f*wDT, with wDT being the width of a data track, and 0.3≦|f|≦0.7.
2. The tape head assembly of claim 1 , wherein:
each servo reader of the servo reader arrangement has a width equal to the width of a data reader; and
the number of servo readers is less than half the number of the data readers in the set.
3. The tape head assembly of claim 1 , wherein:
each data reader has a width wDR =d*wDT, with wDT being the width of a data track, and 0.8≦d≦1.
4. The tape head assembly of claim 1 , wherein the servo reader arrangement contains two servo readers, wherein a first one of the two servo readers is laterally offset by a positive offset value and a second one of the two servo readers is laterally offset by a negative offset value.
5. The tape head assembly of claim 1 , wherein the offset |f|=0.5.
6. The tape head assembly of claim 1 , wherein each servo reader of the servo reader arrangement has a width less than the width of a data track.
7. The tape head assembly of claim 1 , containing another servo reader arrangement containing at least one servo reader, and preferably two servo readers arranged laterally offset from another one of the data readers by less than the width of a data track.
8. The tape head assembly of claim 1 , wherein:
the data readers of the set are arranged in at least one row in the tape head assembly; and
the one or more servo readers are arranged in at least one different row in the tape head assembly at a different longitudinal position than the at least one row containing the data readers.
9. A tape storage system comprising a tape head assembly according to claim 1 and a tape storage medium, the tape storage medium comprising at least one set of data tracks along a longitudinal extension of the tape storage medium and adjacent to each other, and at least one data track of the set comprising one of servo sections or data sections alternating with servo sections.