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10 lines
533 B
Plaintext
10 lines
533 B
Plaintext
This is stpgd service called by the SCST core upon receiving SET TARGET
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PORT GROUPS command via SCST events subsystem. In turn, stpgd calls
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external script to actually modify ALUA state as requested by the SET
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TARGET PORT GROUPS command via cluster manager and SCST sysfs. You can
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find example of such script in scst_on_stpg file.
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Reason why such dual stage approach is used is, because there is no way
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from inside the kernel to control execution of external programs and
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there is no way to write a service calling IOCTLs on shell.
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