use ReleaseSCSITask to release SCSITaskIdentifier

because GetSCSITask will increase fNumCommandsOutstanding,

we must use this function to decrease fNumCommandsOutstanding

adjust aio queue length

sysctl -a | grep aio

find property about aio

sudo sysctl -w kern.aiomax=256

sudo sysctl -w kern.aioprocmax=256

sudo sysctl -w kern.aiothreads=256

for linux:

aio-max-nr

ftp command

mput *.js:

put every file that ends with .js