Status of cvsup3/ftp5

[Garrett Wollman]

cvsup3/ftp5 was down over the weekend as a result of some sort of
ZFS problem that locks the machine hard whenever it touches the "tank"
zpool, where the FTP archives are located.  The CVS tree is on the
root zpool, which mounts just fine, so cvsup3 is back, but ftp5 is
down until I can figure out how to get that zpool to work again.
(Even "zpool status" hangs if it can access the drives.)

Any troubleshooting suggestions will be gratefully accepted.

-GAWollman