Mine are in /scratch/log (if you do ls -l, it shows you the -> rotation path);
/var/log # ls -l | grep hostd
lrwxrwxrwx 1 root root 22 Jun 10 18:47 hostd.log -> /scratch/log/hostd.log
/var/log # cd /scratch/log/
/vmfs/volumes/4f704806-62156875-4238-0025b3d7d2f2/log # ls -l | grep hostd
-rwx------ 1 root root 741869 Jun 17 11:26 hostd.0.gz
-rwx------ 1 root root 752390 Jun 16 15:25 hostd.1.gz
-rwx------ 1 root root 778969 Jun 15 19:00 hostd.2.gz
-rwx------ 1 root root 795028 Jun 14 23:42 hostd.3.gz
-rwx------ 1 root root 812779 Jun 14 03:53 hostd.4.gz
-rwx------ 1 root root 800902 Jun 13 07:49 hostd.5.gz
-rwx------ 1 root root 820661 Jun 12 12:40 hostd.6.gz
-rwx------ 1 root root 807874 Jun 11 18:04 hostd.7.gz
-rwx------ 1 root root 892464 Jun 11 06:42 hostd.8.gz
-rwx------ 1 root root 799120 Jun 10 18:35 hostd.9.gz
-rwx------ 1 root root 3540822 Mar 26 2012 hostd.log
/vmfs/volumes/4f704806-62156875-4238-0025b3d7d2f2/log #