Solaris is a proprietary unix operating system originally developed by sun microsystems. Raid5 requires a minimum of 3 drives, and all should be the same size. Software raid in solaris 10 ars technica openforum. Logical disk manager, introduced with windows 2000, allows for the creation of raid 0, raid 1, and raid 5 volumes by using dynamic disks, but this was limited only to professional and server editions of windows until the release of windows 8. I believe this is because one the raid 5 slices has not failed. The solaris management console smc comes with the solaris 9.
In solaris 9, a whole raid 0 contains 2 disk must be configure, then, raid 1. Hello all, i have a very strange problem with svm on 3000 storage. It ran solaris 9 905 operating system for sparcbased systems 64bit and oracle 9i enterprise edition release 9. Software raid is one of the greatest feature in linux to protect the data from disk failure. Apr 28, 2017 how to create a software raid 5 on linux. Oracle solaris zfs calls this raidz2 and also had raidz3 with triple parity. Mar 25, 2020 in raid 6, we use different methods for different failure scenarios. We have just received a sun ultra 40 box that has 6 drives 2x250gb and 4x500gb i m trying to setup a software raid 5 on the 500gb drives with one spare and also mirror the 250gb drives. We can use full disks, or we can use same sized partitions on different sized drives. Smbs using nas devices for backup and restore purposes will find many softwareraid based options. It is used to improve disk io performance and reliability of your server or workstation. Solaris 9 software is designed to optimize memory management in the way that best suits the particular servers on which it is running.
We have lvm also in linux to configure mirrored volumes but software raid recovery is much easier in disk failures compare to linux lvm. Linux is free and easily available as it is platformindependent. In 2010, after the sun acquisition by oracle, it was renamed oracle solaris. The grub bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails no matter which one. A guide for system administrators mark brown chuck davis william dy paul ionescu jeff richardson kurt taylor robbie williamson a comprehensive reference for a quick transition presents a taskbased grouping of differences between the operating system environments additional content about how to optimize linux on ibm. Creating raid5 volumes solaris volume manager administration. Liveupgrade from solaris 9 to solaris 10 sysadmins journey. Solaris volume manager in the solaris 9 operating environment. How to set up software raid1 on a running system incl. Solaris has supported the sparc and power pc platforms. When checking status of raid5 volumes, you need to check both the raid5 state and. Raid simulator for intel embedded software raid technology 2 esrt2 software. I believe this is because one the raid5 slices has not failed.
No data is ever deleted, and to roll back to solaris 9, all you need is one command and a reboot. Solaris volume manager enables an administrator to create soft partitions either on top of individual physical disks, or on existing hardware raid 1, raid 5, or raid 0 volumes. Chapter 15 raid 5 volumes tasks solaris volume manager. If there are any open filesystems on this disk not under svm control. I need to replace a failed disk in a v240 running solaris 9 using svm. We are running the console remotely, so to run smc on our workstation we have to run. All mirrored volumes in svm automatically benefit from volume logging. Solaris is a nonfree unix operating system originally developed by sun microsystems. Zfs is also much faster at raidz that windows is at software raid5.
Sbadmin for solaris system recovery guide storix software. Raid 5 the raid 5 feature in solaris volume manager provides highly available data storage at a lower cost n using less disk space n than mirroring. We set up our raid 5 array, first, with the gui, then deleted it and started. This section explains how solaris volume manager software performs with respect to its competition. For solaris 9 and above operating system solaris os metadevices. In 2010, after the sun acquisition by oracle, it was renamed oracle solaris solaris is known for its scalability, especially on sparc systems, and for originating many innovative features such as dtrace, zfs and time slider. Raid level 0 is not redundant, hence does not truly fit the raid acronym.
As you already know the software raid in solaris is made at the partition level so for example, partition 1 from first disk is mirrored or stripe with partition 1 on the second disk. Raid5 is just the first example, and we hope our approach will inspire others to benchmark availability of other subsystems. Raid 5 suffers massive performance degradation during partial outage. On a side note, if youre using software raid its about a million times easier to setup a zfs pool, if you have solaris 10 1106 or later installed. Zfs equally as mobile between solaris, opensolaris, freebsd, osx, and linux under fuse. Find answers to install software raid 1 on sun solaris 9 from the expert community at experts exchange.
Solaris 10 910 u9 added physical to zone migration, zfs triple parity raidz and oracle solaris auto registration. After applying raid5 to the disk, solaris 11 will be install. Solaris 8 9 with raid 5 svm user4994457 sep 17, 2008 11. An quick howto for mirroring your system disk to the 2. Smbs using nas devices for backup and restore purposes will find many software raid based options. To replace an svmcontrolled disk which is part of a raid5 metadevice, the following steps must be followed. However, popular packages are updated frequently and by subscriber request, more up to date packages may be also be present for other versions of solaris. Do not create volumes larger than 1tb if you expect to run the solaris software with a 32bit kernel or if you expect to use a version of the solaris os prior to solaris 9 403. Solaris 10 811 u10 added zfs speedups and new features, oracle database optimization, faster reboot on sparc system. Zfs is available on solaris, opensolaris, nexenta, and freebsd operating systems. Some levels can be combined to produce a twodigit raid level. Linux is one of the best software that provides high stability and dependency. Once that is done tell solaris what to use for the root device the next time you boot.
Emc host connectivity guide for oracle solaris dell technologies. Software raid 5 in ubuntudebian with mdadm zack reed. Raid interactive tutorial for 12gbs intel raid controller. We just need to remember that the smallest of the hdds or partitions dictates the arrays capacity. Solaris volume manager performance with ufs file systems and oracle administration tips solaris volume manager performance overview.
This guide explains how to set up software raid1 on an already running centos 5. Jun, 2016 software raid is used exclusively in large systems mainframes, solaris risc, itanium, san systems found in enterprise computing. Create pool unix and linux forums the unix and linux forums. The solaris management console smc comes with the solaris 9 distribution, and allows you to configure your software raid, among other things. Solaris volume manager performance best practices solaris. Software raid when storage drives are connected directly to the computer or server without a raid controller, raid configuration is managed by utility software in the operating system, which is referred to as a. On native platforms not linux solaris is faster that ntfs. Install oracle software and create database in a separate pool. Solaris 10 9 10 u9 added physical to zone migration, zfs triple parity raid z and oracle solaris auto registration. The solaris os now allocates memory to userlevel applications much faster, and enables users to more easily debug memory leaks in their applications. When i say easy in this post, it means that we need calculation as much as raid5 recovery. Linux vs solaris top 8 beneficial differences you need to know. Solaris is known for its scalability, especially on sparc systems, and for originating many innovative features such as dtrace, zfs.
Software raid is used exclusively in large systems mainframes, solaris risc, itanium, san systems found in enterprise computing. Install software raid 1 on sun solaris 9 solutions experts. A redundant array of inexpensive disks raid allows high levels of storage reliability. Microsoft windows supports raid 0, raid 1, and raid 5 using various software implementations. I am using solaris 9 1202 with latest patches and i have one storedgetm pci dual ultra3 scsi host adapter connected to the storage using 2 paths. To create the raid 5 volume, use one of the following methods. Synology diskstation ds, buffalo terastation, are examples. To any customer who wishes to acquire copies of solaris 8 or 9 media. I have metadetached and meatcleared the submirors but the cfgadm c unconfigure is failing. Heres another script this one to set up raid 5 relatively easily. Disk devrdskc0t1d0sx first we must get the partition table from the first disk to the second. When i say easy in this post, it means that we need calculation as much as raid 5 recovery. It provides the ability for one drive to fail without any data loss.
The solaris volume manager administration guide provides instructions on using solaris volume. In the following explanation, when i say data drive, it means drives with actual data, not parities. Since these controllers dont do jbod my plan was to break the drives into 2 pairs, 6 on each controller and create the raid 1 pairs on the hardware raid controllers. To create a raid5 volume, use one of the following methods. The m series does not support hardware raid, but only software, and. Software vs hardware raid 5 tips to speed up linux software raid rebuilding and resyncing battle against any raid five. I have found some info on how to mirror the 250gb drives but i havent been able to find very detailed on how to setup the raid 5. Next step is to actually create the raid using these two disks. Package names that are nonbold andor with no version number, are not currently available for this version of solaris.
Replace nonfailed disk when using solaris 9 svm raid5. If a disk is used in both a mirror and a raid5, follow the instructions for the mirrored devices above. Now for step 4 attach the primary disk devices to the raid device. Suppose you have nine disks of 100gb, then you can create three raid 5 arrays of 200gb each. Nov 15, 2011 raid5 requires a minimum of 3 drives, and all should be the same size. Find answers to raid 5 on solaris 9 from the expert community at experts exchange. Migrating from solaris 9 enterprise edition on sun fire v440. It is a method of storing information on multiple hard disks for greater protection andor performance. Heres a quick way to calculate how much space youll have when youre complete.
I have seen some of the environments are configured with software raid and lvm volume groups are built using raid devices. In raid6, we use different methods for different failure scenarios. Usable space number of drives 1 size of smallest drive. A raid can be deployed using both software and hardware. There are several different storage methods, named levels, numbered from 0 to 9. The solaris volume manager administration guide provides instructions on using solaris volume manager to manage disk storage, including creating, modifying, and using raid0 concatenation and stripe volumes, raid1 mirror volumes, raid5 volumes, and soft partitions. There are at least three different practically used raid configurations that are often called levels 0, 1, 5. In solaris 9 the solaris volume manager is your tool for software raid. But the real question is whether you should use a hardware raid solution or a software raid solution. Heres how to leverage liveupgrade to safely upgrade from solaris 9 to solaris 10 using a spare disk. The script has a bit of an affinity for controller 0, but is designed to work with other controllers too except that it wont set the bootdevice in the eeprom for you if your root filesystems arent both on controller 0.
Mar 06, 2018 software raid is used exclusively in large systems mainframes, solaris risc, itanium, san systems found in enterprise computing. Note on oracle solaris, it is recognized as one disk drive vendor is lsi, product is logical volume per created raid volume. Understanding raid6 with junior high math oracle solaris blog. Solaris 8 9 with raid5 svm user4994457 sep 17, 2008 11. Jul 02, 20 software raid is one of the greatest feature in linux to protect the data from disk failure. The solaris volume manager provides the ability to create devices from disk slices that provide optional data striping raid 0, mirroring raid 1, parity disks raid 5 and software partitions softparts for enhanced performance, flexibility and. Raid is an acronym for redundant array of independent or inexpensive disks. The solaris volume manager software uses logical volumes sets of disk slices, to implement raid 0, raid 1, and raid 5. This would give me 2gb of cache from the controller 1gb per 3 raid 1 groupings and then use zfs to create the striping groups.
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