[squid-users] Second COSS swap is unused?

Hello!

        I have following setup on my squid:

cache_dir aufs /var/cache/squid 31000 32 256
cache_dir coss /var/cache/squid/COSS.img 2048 max-size=131072
cache_dir aufs /var/cache/squid2 31000 32 256
cache_dir coss /var/cache/squid2/COSS.img 2048 max-size=1048575

But second COSS seems to be unused:

Store Directory #1 (coss): /var/cache/squid/COSS.img
FS Block Size 512 Bytes

Maximum Size: 2097152 KB
Current Size: 1908943 KB
Percent Used: 91.03%
Current load metric: 3 / 1000
Number of object collisions: 2
Flags: SELECTED
Pending Relocations: 0
Stripe: 1032, lockcount: 0, numobjects 62, flags:
NOTFULL,NOTWRITING,NOTWRITTEN,DISK
Stripe: 0, lockcount: 0, numobjects 135, flags:
NOTFULL,NOTWRITING,NOTWRITTEN,MEMONLY
Stripe: 3, lockcount: 1, numobjects 288, flags:
FULL,NOTWRITING,NOTWRITTEN,MEMONLY
Pending Relocations:

Store Directory #3 (coss): /var/cache/squid2/COSS.img
FS Block Size 512 Bytes

Maximum Size: 2097152 KB
Current Size: 0 KB
Percent Used: 0.00%
Current load metric: 0 / 1000
Number of object collisions: 0
Flags:
Pending Relocations: 0
Stripe: 0, lockcount: 0, numobjects 0, flags:
NOTFULL,NOTWRITING,NOTWRITTEN,MEMONLY
Stripe: 0, lockcount: 0, numobjects 0, flags:
NOTFULL,NOTWRITING,NOTWRITTEN,DISK
Pending Relocations:

What I am doing wrong? Maybe I should remove two COSS swaps and make one?

-- 
Michał Margula, alchemyx@uznam.net.pl, http://alchemyx.uznam.net.pl/
"W życiu piękne są tylko chwile" [Ryszard Riedel]