DLPX-86032 DelphixFatalException raised in DB_REFRESH job during the …

…derailer load on Scale setup having upgraded kernel

PR URL: https://www.github.com/delphix/delphix-platform/pull/443

files/common/lib/modprobe.d/10-zfs.conf

@@ -115,3 +115,10 @@ options zfs zvol_threads=256
 # link creation can get up to the order of a minute or more.
 #
 options zfs zfs_vdev_open_timeout_ms=180000
+
+#
+# Wait up to 1 minute when opening a ZVOL. We've found the defualt value
+# is insufficient for some workloads (e.g. scale testing), resulting in
+# VDB errors (e.g. MSSQL VDB refresh failing).
+#
+options zfs zvol_open_timeout_ms=60000