Changes between Version 3 and Version 4 of Doc/BasicConfig/AII

Timestamp:

Apr 15, 2008, 7:41:09 AM (18 years ago)

Author:

jouvin

Comment:

--

Doc/BasicConfig/AII

@@ -12 +12 @@
 == AII Variables ==
 
+All AII options may be customized through variables. For the complete list, look at [source:templates/trunk/standard/aii/quattor/ks/config.tpl standard/aii/quattor/ks/config.tpl] and [source:templates/trunk/standard/aii/quattor/pxe/config.tpl standard/aii/quattor/pxe/config.tpl].
+
+A typical AII configuration is :
+{{{
+# AII specific parameters
+variable AII_OSINSTALL_SRV ?= "quattorsrv.lal.in2p3.fr";
+# variable AII_ACKSRV ?= "quattorsrv.lal.in2p3.fr";
+variable AII_OSINSTALL_ROOT = '/packages/os';
+# Standard Kickstart configuration template for IPN machines
+variable AII_OSINSTALL_TEMPLATE ?= "lal_sl_ks.cfg";
+}}}
 
 == File Systems and Block Devices ==
@@ -53 +64 @@
 
 === Block Devices ===
- 
+
+Block devices define logical and physical devices used by file systems. They can be logical devices, HW or SW raid devices, physical disks... A block device can be made of other block devices, for example a logical device is made of one or more physical devices.
+
+Unlike file systems which are described with an ordered list, block devices are defined as a nlist. At installation time, they are processed (partition creation, logical volume creation...) in the order of file systems who use them.
+
+Several functions are available to help in declaration of block devices, in particular :
+ * `partition_add(PHYS_DISK,partition_nlist)` : allow to add entries efficiently in `/system/blockdevices/partitions` nlist. 
+ * `lvm_add(VOL_GROUP,logvol_nlist)` : allow to add entries efficiently in `/system/blockdevices/logical_volumes` nlist. 
+
+An example of block device definition is :
+{{{
+"/system/blockdevices/physical_devs" = npush (
+  DISK_BOOT_DEV, nlist ("label", "msdos")
+);
+
+"/system/blockdevices/partitions" = partitions_add (DISK_BOOT_DEV, nlist (DISK_PART_BOOT, 64*MB,
+                                                                          DISK_PART_SWAP, 4*GB,
+                                                                          DISK_PART_ROOT, 1*GB,
+                                                                          DISK_PART_LOGPARTS, -1
+                                                                         )
+                                                   );
+    
+"/system/blockdevices/volume_groups" = npush (
+    "vg0", nlist ("device_list", list ("partitions/" + DISK_PART_LOGPARTS))
+);
+
+"/system/blockdevices/logical_volumes" = lvs_add ("vg0", nlist("usrvol", 5*GB,
+                                                               "homevol", 512*MB,
+                                                               "tmpvol", 1*GB,
+                                                               "varvol", -1,
+                                                              )
+);
+
+}}}
+
+Look at [source:templates/trunk/sites/example/filesystems/glite.tpl sites/example/filesystems/glite.tpl] for more details.