Unmirroring a raid 1 root volume on solaris sysadmins. The solaris management console smc comes with the solaris 9 distribution, and allows you to configure your software raid, among other. Raid 1 is simply a mirror and the simplicity of the system provides the reliability benefits. So there were 4 luns, two on one storage processor and 2 on the other then zfs striped pool over all 4 luns was. Sparc t41solaris 11add 2 new hdds in raid 0 configuration software is ready for deployment and customer has a new t41 sparc, but somehow it also became my task also to setup the server. For information about related concepts, see chapter 9, raid 1 mirror. Software raid underneath esxi datastore server fault. In solaris 9, a whole raid 0 contains 2 disk must be configure, then, raid 1 mirroring slice by slice inside. Plan to use software raid veritas volume mgr on c1t2d0 disk. Raid devices are virtual devices created from two or more real block devices. How to set up software raid1 on a running lvm system incl. Software raid is one of the greatest feature in linux to protect the data from disk failure. Chapter 10 raid 1 mirror volumes tasks solaris volume. Creating a raid 1 volume how to create a raid 1 volume from unused slices.
Whether software raid vs hardware raid is the one for you depends on what you need to do and how much you want to pay. You need to have same size partition on both disks i. Raid redundant array of inexpensive disks or drives, or redundant array of independent disks is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both. This guide explains how to set up software raid1 on an already running lvm system debian etch.
Software raid 1 in windows 7 for increased data security. Solved using both hardware and software raid together. After a creating a raid volume using raidctl, use format1m to configure and label the volume before attempting to use it in the solaris operating system start the format utility. Explination about raid levels in solaris 10 describing raid and solaris volume manager software the solaris volume manager software can be run from the command line or a graphical user interface gui tool to simplify system administration tasks on storage devices. When you are working with raid 1 volumes mirrors and raid 0 volumes singleslice concatenations, consider the following guidelines. The solaris volume manager software uses logical volumes sets of disk slices, to implement raid 0, raid 1, and raid 5. And just like the other topic, im not sure what meaningful means, except to.
If the volume is set up as a raw device for database management software or. I am planning to construct one raid1 mirror with zfs just like previous solaris 10 x86 installation. In my attached file, there is demonstration by image. 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. If the r option is omitted, raidctl will create a raid 1 volume. Sparc t41solaris 11add 2 new hdds in raid 0 configuration. Software raid 10 in solaris 11, multipath, and a few related questions showing of 3 messages. Read overview of replacing and enabling components in raid 1 and raid 5 volumes and background information for raid 1 volumes. What software are you using to perform this mirroring.
When creating a raid1 volume from an existing file system built on a slice, only. Hardware raid 1 question for solaris oracle community. Disk mirroring using solaris disk manager raid 1 volumes. I am installing the new solaris 11 on my dell tower desktop workstation with two 3tb sata hard drives. This document describes how to setup a software raid 1 on a solaris 10 machine. In case of hardware raid, 4x raid10 groups were created each made of 10 disks 40 disks in total and each group presented as a single lun. Check prerequisites for creating solaris volume manager elements and background information for creating raid 1 volumes create two stripes or concatenations, which will be the submirrors. This post is an attempt to explain how raid5 recovers data by using elementary school math. Now for step 4 attach the primary disk devices to the raid device. Understanding the internal will help you understand why the raid layout with a lot of drives would take longer to recover data. I have also tested this method on solaris 8 and the process. Sparc t4 1 solaris 11add 2 new hdds in raid 0 configuration software is ready for deployment and customer has a new t4 1 sparc, but somehow it also became my task also to setup the server.
Hardware raid will cost more, but it will also be free of software raids. This has become much less necessary with more intelligent storage solutions that implement hardware mirroring and raid 5. The solaris management console smc comes with the solaris 9 distribution, and allows you to configure your software raid, among other things. Disks must be specified in solaris canonical format for example, c0t0d0. With raid 0 being useless for data security and raid 5 being unavailable, creating a software raid 1 in windows 7 is the only viable option. There are six levels of raid as well as a non redundant array of independent disks raid 0. Software mirroring and raid 5 are used to increase the availability of a storage subsystem. Create software raid 1 mirror array h ow do i create software raid 1 arrays on linux systems without using gui tools or installer options. 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. The solaris volume manager software uses logical volumes sets of.
Creating a raid 1 volume with this option replaces the contents of disk2 with the contents of disk1. Software raid considerations solaris volume manager. Software raid 10 in solaris 11, multipath, and a few. Configuring boot disks with solaris volume manager software october 2002. Zfs is a combined file system and logical volume manager designed by sun microsystems. A smaller percentage of the time, you need to create a svm mirror of your root partition. How to set up software raid1 on a running system incl. We left 1 percent of the drives left for the meta dbs, the other partition was 99%.
You may not copy, modify, rent, sell, distribute or transfer any part. I have managed to get the server is up and running solaris was preinstalled, and software works on it. Limitedtime offer applies to the first charge of a new subscription only. I would personally suggest using zfs with solaris or freebsd, but mdadm might also work. 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.
I have seen some of the environments are configured with software raid and lvm volume groups are built using raid devices. From the enhanced storage tool within the solaris management console, open the volumes node, choose the mirror, then choose actionproperties and click. 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. If you can afford it i would recomend using identically sized drives. That would be the case with any raid 1, not limited to software or hardware. Just to note up front i used identical maxtor 80gb drives for this raid setup. A raid can be deployed using both software and hardware. We have lvm also in linux to configure mirrored volumes but software raid recovery is much easier in disk failures compare to linux lvm. Find answers to install software raid 1 on sun solaris 9 from the expert community at experts exchange.
There are at least three different practically used raid configurations that are often called levels 0, 1, 5. Configure a hardware raid volume for the solaris os. Dear all, we have hardware raid 1 implemented on solaris disks. Hi all, how do i configure software raid0, 1,5 levels in sun sparc solaris 8. Software raid in solaris 10 ars technica openforum. 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. This was in contrast to the previous concept of highly reliable mainframe disk drives referred to as. The custom jumpstart installation method and live upgrade support a subset of the features that are available in the solaris volume manager software. It happens fairly often that you need to create a software mirror using svm on solaris. Raid1 and raid0 volume requirements and guidelines. But the real question is whether you should use a hardware raid solution or a software raid solution. The r option can be used to specify the raid level of the target volume. This software is licensed for use only in conjunction with intel.
Use one of the following methods to replace a slice in a mirror. 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. The solaris volume manager administration guide provides instructions on using solaris volume manager to manage disk storage, including creating, modifying, and using raid 0 concatenation and stripe volumes, raid 1 mirror volumes, raid 5 volumes, and soft partitions. It is used to improve disk io performance and reliability of your server or workstation. Creating a raid1 volume solaris volume manager administration. A redundant array of inexpensive disks raid allows high levels of storage reliability. Solaris volume manager software features enhance storage management capabilities beyond what is handled by intelligent storage arrays with hardware raid. With regards mohan this email and any files transmitted with it are for the sole use of the intended recipients and may contain confidential and. Now solaris volume manager software is integrated with the solaris operating environment solaris. After using lots of installation media of solaris 11, i didnt find the options to create raid1 mirror on zfs root partition pool. Raid1 volume in solaris can be treated using two methods. Comparing hardware raid vs software raid deals with how the storage drives in a raid array connect to the motherboard, and the management of those drives. Install software raid 1 on sun solaris 9 solutions. We are running the console remotely, so to run smc on our workstation we have to run.
I have a sun fire v240 server,now i want to know whether there is a hardware based raid or not. As we mentioned earlier, on a level 1 raid two disks have the exact copy of all the data at. Configure a hardware raid volume for the solaris os sun. Next step is to actually create the raid using these two disks. Maybe though you dont get all the advantages i write about in this post, so take. Zfs is scalable, and includes extensive protection against data corruption, support for high storage capacities, efficient data compression, integration of the concepts of filesystem and volume management, snapshots and copyonwrite clones, continuous integrity checking and automatic repair, raidz. Use the solaris volume manager gui or the metattach command to attach a submirror.
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