Experience with hitachi storage management software a plus. As a feature of storage virtualization sv, lun masking has numerous customer benefits such as security and configurable lun. This is the hitachi device manager storage navigator. Intended audience this document is intended for system administrators who are involved in installing, configuring, and operating the hitachi universal storage platform v and hitachi universal storage platform vm storage systems. Round 1 two telephonic interviews i had two phone screenings or interviews. This is usually done in part by masking off the logical units or luns that arent legitimately available to the user. While allocating the space to server no actual storage space or physical space is allocated the server or application. On the storage side, is the lun masking done properly.
Learn how to create a lun, how to share a lun, and find out about lun provisioning and lun masking. Hitachi storage management software that achieves the best operation 94 tiered storage manager by creating groups of volume virtualized by hitachi disk array subsystems by means of a concept known as tiers each of which corresponds to certain operational requirements like performance and cost. Lun masking is implemented primarily at the hba host bus adapter level. This company has tested more than one smi enabled software. Hitachi universal storage platform user and reference guide. Hitachi command suite software is an unified management framework for advanced data and storage management that improves operations. Explore logical unit number lun storage and its role in san management. Zoning allows you to selectively group your storage and your host or hosts so that they can see the storage array. Some storage devices have lun masking utilities and can combine with the switch to mask its own luns. Emc dmx device management, lun masking, host configuration edit configuration files, install storage management software and dualpathing sw if needed, integrate into existing backup environment.
Hitachi virtual storage platform family delivers enterprise storage virtualization in a unified platform for midmarket to global enterprise organizations that need to manage information more efficiently. Presents a virtual storage system by lun masking, luns are presented only to servers which are authorized to see them. On the hitachi storage navigator, complete the following steps. Lun masking storage array and esxi in vmware vsphere vmworld. Lun masking lun masking is the process of masking or hiding luns from hosts that shouldnt see them or have access to them. Lun management at the heart of san configuration searchstorage. Rajesh chavan field services engineer hitachi data. The san would prevent certain devices from seeing a specific lun that it is hosting. You may have zoned a server and storage subsystem together, but you may not want the server to see all of. Is it possible to create a lun of small size, say 5gb and check if the lun is visible on esx side. Ibm san what is lun masking solutions experts exchange. The security benefits of lun masking implemented at hbas are limited, since with many hbas it is possible to forge source addresses wwnsmacsips and compromise the access. Coordinating maintenance task with customer and principal administration of wintel and unix servers to support storage.
In effect, it presents a virtual storage system to each host. Block io performance reporting, discovery, instance discovery, lun masking and mapping, monitor lun mapping changes, monitor volume creation and removal, related instance discovery, slp discovery, secure access, storage pool creation and removal, storage pool monitoring, subscribe to event notifications, volume creation and. Emc vnx how to create a storage group storagefreak. Which is a better fit for a storagearea network san fabric. Switch zoning for hitachi hus vm systems ibm knowledge center. This unified management framework for all hitachi storage systems consists of an integrated suite of products. Lun masking can be used with iscsi storage and fibre channel storage. Lun masking takes place at either the host bus adapter hba or storage controller, and restricts the. The hyperv nodes will utilize ms software iscsi initiators. Hitachi storage family matrix hitachi unified storage 110 hitachi unified storage. Storage portfolio flash and storage solutions hitachi.
Lun paths are configured to ports according to the mapping defined in the migration. If a storage administrator is unaware of the outage, unable to respond, or not present, hpe cluster extension software can manage the failover because it requires no server reboots or lun presentationmapping changes during failover. All x86based turbo nas models tsx39, tsx59, ts509, and ts809 support this feature. View rajesh chavans profile on linkedin, the worlds largest professional community. The vsp g or f series controllers storage systems support lun masking to enable multiple servers to access separate luns through a common controller port. Nov 11, 2016 hi friends welcome to my youtube channel. Short description hitachi storage administrator 6 to 9 years mumbai qualifications any full. Hitachi virtual storage platform g hitachi virtual storage platform hitachi unified storage vm hitachi universal storage platform vvm.
Typically, all lun storage can be managed through one software program that. But it is worth noting that volume is also often used to describe groups of several luns created with volume manager software. Lun masking is normally performed at the storage controller level. Hi, a 9980 fc port is shared between a windows and a unix server. The first interview was based on the storage concept, types of storage, management of storage, protocols including iscsi and fiber channel, lun masking and. To create a storage group simply go to host storage group section. There are no issues with mixing workloads or server types in this setup. Jan 27, 2014 by doing zoning and lun masking storage units are isolated or made invisible to some or all of the hosts in the san. Dx60dx80dx90 are the entrylevel series of the fujitsu eternus family of disk storage. You should have called the new lun something that makes sense eg. Portbased lun masking is granular to the storage array port, so any disks on a given port will be accessible to any servers on that port.
This section introduces the setup for hitachi data systems storage. Lun storage and its role in san management computer weekly. Management, maintenance and implementation of hitachi storage environment vsp. Lun masking is important because windows based servers attempt to write volume labels to all available luns. Check the fabric information on each oracle vm server that has access to the san hardware. Hi team can you please tell me hitachi equivalent of xp24000, xp12000, and p9500.
When lun masking is implemented at the storage controller level, the controller itself enforces the access policies to the device and as a result it is more secure. Ability to research, specify, order and plan equipment layout and interconnectivity. This feature lets you enable data access and create storage groups on shared storage systems. Hardware replacement activity such as disk, sfp and cache memory replacement. Mapping within a storage controller lun masking at the storage controller level allows a storage subsystem to mask its own luns. It is also a top choice for tiered or standalone storage. Lun masking it is an process that makes a lun available to some hosts and unavailable to other hosts.
The hiring process at hitachi data systems included two telephonic interviews and five on site interviews. A lun is a unique identifier given to separate devices, or logical units, so they can be accessed by a scsi, iscsi or fibre channel protocol. Hitachi data systems interview questions, placement process. This is the hitachi device manager storage navigator users configure an vsp g or f series controllers via software installed on a gui server. Troubleshooting, implementation and configuration backup software management symantec netbackup storage provisioning, lun management, lun masking, zoning. In a wellmanaged san, users should be aware only of those files to which they have access. Hitachi virtual storage platform vsp g series hitachi vantara.
Ilham ramanda storage engineer hitachi data systems. The hitachi hus vm system has a maximum lun size of 60 tb and eight fibre channel ports luns. Allocate a lun masking mapping in assign luns to hosts, device manager, hcs, lun operations allocating a lun its the process where you present a carved lun to a host or to more hosts if you have a cluster for example. Configure path optimization features alua or similar on your disk subsystem, if so instructed by your vendors documentation. Official smis ctp test results hitachi limited view test results for smis which are older than smis 1. Hosts not included in the luns mask cannot access it. To mask luns on an esxi host, use the hds storage navigator software for best results. The hitachi hus vm system has a maximum lun size of 60 tb and eight. A volume is referenced by the id or the name of the ldev.
Lun masking is a further constraint added to lun zoning to ensure that only devices authorized to access a specific server can access the corresponding port. It consists of a group of wwns which are allowed to access a given lun. Logical unit number masking or lun masking is an authorization process that makes a logical unit number available to some hosts and unavailable to other hosts lun masking is a level of security that makes a lun available to only selected hosts and unavailable to all others. Existing storage from multiple vendors can now be centrally unified in a shared pool of data. Nov 15, 20 find answers to san storage interview question from the. As a feature of storage virtualization sv, lun masking has numerous customer benefits such as security and configurable lun presentation. Mar 28, 2002 san approaches to lun security rick cook. The dx60, dx80 and dx90 systems easily compete with the emc ax4, hitachi sms, hp. Currently, there are four approaches to providing lun security. Lun logical unit number masking is an authorization process that makes a lun available to some hosts and unavailable to other hosts.
Hitachi nondisruptive migration user guide hitachi vantara. Hosts can be in the same zone but only one can access a given lun because of lun masking. Explore hitachi storage portfolio to know about industrys most resilient hybrid, flash, nas and object storage solutions for accelerating your enterprise and deliver more predictable user experience. Hitachi vantara hitachi virtual storage platform g200 vsp. Clx software supports the entire hpe 3par3par storeserv, xpp9500 and evap6000 arrays. It should be a simple matter of redoing any lun masking on the san storage array. If you want to specify only certain hosts from accessing a storage device then you would want to setup zoning. Is it possible to hide unix luns from windows in controller side. I believe that another reason to use both zoning and masking is when connecting nonclustered devicesservers, which need access to same lunstorage devicetarget. How to create and access a lun with netapp and microsoft windows 2012. Hitachi virtual storage platform vsp g series hitachi.
Opensystems host attachment guide hitachi data systems. Portbased lun masking is granular to the storage array port, so any. The lun masking setup will determine which wwn host bus adapter will be able to access a virtual disk or sets of virtual disks vdisks. Also check for jobs with similar skills and titles top hitachi storage jobs free alerts.
Rajesh chavan technical consultant hitachi vantara linkedin. Emc vnx access logix, lun masking and storage groups. If the storage doesnt allow visibility of the lun to a particular host then it doesnt even exist as far as. Create new lun on the same array as the one you want to expand see this article if you have not already done this step. Lun masking is similar to zoning in the sense that both are used to provide a way of access control. I created a lun named lun0and present to my new esx named esx1, but when i want to add another lun that in used by existing esx esx2 to esx1, i cant see other lun under available lun column. In order to access the lun presentation screen, please put the software into maintenance mode.
Each hitachi hus vm can export 4096 luns to the system. Workaround when luns are not visible with hitachi storage. Are the luns mapped to the same esx host cross verify the wwns 2. Hcs improves administration, operations, data mobility, monitoring, and resilience for hitachi virtualized storage environments. This vmware vsphere video training course by vikas singh. Lun masking implemented at this level is vulnerable to any attack that compromises the hba.
Configure virtualization and storage replication with hitachi storage system. Lun masking is mainly implemented at the host bus adapter hba level. View and download hitachi storage manuals for free. Physical space is allocated as and when it is required, or rather when actual data is written to the lun. Selective storage presentation on the msa type storage is lun masking. Hi all, i am working on an oracle 10g rac and asm installation with sun e6900 servers attached to a hitachi san for shared storage with sun solaris 10 as the server os. In the hitachi freedom storage 5800 subsystem, a total of 64 luns can be. To prevent multipathing driver incompatibility issues, avoid connecting a host to both. The vsp g or f series controllers storage systems support lun masking to enable. Apr 07, 2017 lun masking storage array and esxi in vmware vsphere vmworld mikrotik, ubnt, tp link cisco, netis, totolink pf sense, virtual box, software hardware enough and more follw my video and easy. But other host that configured early is able to see the lun0 is mapping guard is used to secure the lun masking how to disable it.
The hitachi hus vm storage system can support lun masking to enable. Find answers to ibm san what is lun masking from the expert community at experts exchange. Nov 03, 2011 hitachi dynamic provisioning hdp with hdp, we club the luns and create a pool of disk space. Lun masking once the zoning is done, we can further lock down access to the storage by setting up lun logical unit number masking on the storage device. Lun masking is an integral part of host lun presentation along with lun mapping. For example, hdss freedom storage 7700e contains a lun masking utility in its storage controller. Storage zoning vs lun masking online computer tips. Storage portfolio flash and storage solutions hitachi vantara. Netapp storage l3, hitachi storage l3, mandatory and emc storage. I have used the buffalo 5400r nas device in the past but i cant quite figure out how to expose 1 lun for vhd storage only out to the 2 iscsi initiators running out of the 2 hp dls. Hitachi data retention utility, performance monitor feature, volume shredder feature, virtual lun software, lun manager, vlvi cvs, hitachi server priority manager, hitachi volume retention, cache residency manager feature, hitachi storage navigator, raidcom, java api, cci command control. A lun is required to be presented to svc before svc will detect the controller. I am trying to determine the lun ids of my disks as seen by the storage admin on the switch.
Hitachi data systems vsp g series and f series storage. This paper describes and clarifies dynamic provisioning to help and understand the tasks involved in hitachi dynamic provisioning hdp. Lun masking is implemented primarily at the hba host bus adapater level. Block io performance reporting, discovery, instance discovery, lun masking and mapping, monitor lun mapping changes, monitor volume creation and removal, performance reporting definition, related instance discovery, slp discovery, scalable object retrieval, secure access, storage pool creation and removal, storage pool monitoring, subscribe to event notifications, thinly. Why do we need lun storage rather than using disks as they are. This document shows you how to configure iscsi advanced acl access control list on qnap turbo nas and verify the settings. Hitachi command suite software is an unified management framework for advanced data and storage management that improves operations, provisioning, service levels, data. Hitachi storage job openings apr 2020 31 active hitachi.
Hitachi virtual storage platform vsp g series, a flashpowered cloud platform, reduces risks and delivers data three times faster with industrys best 100% data availability guarantee. Lun creation and lin masking from storage to the servers. The storage array parameters specified in the required parameters for hitachi storage arrays with systems running data ontap topic should be set and luns should be mapped to the host groups before the switch is zoned to connect the data ontap system that uses array luns to a hitachi storage array. Storage administrators configure, implement, and manage ongoing operations of several servers simultaneously via a storage area network. If you are not sure what storage group is and why we actually need it, go thru this post. What i am looking for is in other words a lun masking service based on clients ip address, hostname, wwpn or. How to configure iscsi advanced acl on qnap turbo nas.
Storage provisioning, lun management, lun masking, zoning, performance management and. They should both be used to secure the storage network and reduce unnecessary traffic. Smis conformant provider software for hitachi limited snia. See the complete profile on linkedin and discover rajeshs. Zoning and lun masking are often confused for each other, probably because both of them are used to restrict access to storage. Logical units and target ports on hitachi hus vm systems. Lun masking adds a finer level of control to zoning. On the first place check if you are actually able to see the lun from esxi storage device tab. Hitachi storage management software that achieves the best. If the storage doesnt allow visibility of the lun to a particular host then it doesnt even exist as far as the host is concerned. Design and implementation of san which includes installing and configuring of hitachi storage boxes and fiber channel switches. We have our new host added to the storage system not physically connected, but thats ok. Lun security enables lun masking by the worldwide node name wwnn of the initiator port. Access logix is a storage systembased licensed software.
Skills relevant to this position and found on example resumes include working on vmware esx servers to provide storage support, and increasing capacity utilization and enhanced performance on vmax and dmx by performing virtual provisioning using smc. This can render the luns unusable by other operating systems and can result in data loss. Additionally, techniques such as lun masking and lun zoning can be used to dictate. Allocate a lun maskingmapping in assign luns to hosts, device manager, hcs, lun operations allocating a lun its the process where you present a carved lun to a host or to more hosts if you have a cluster for example. San storage interview question solutions experts exchange. Logical units and target ports on hitachi hus vm systems ibm. Hitachi hus vm systems identify exported logical units through scsi identification descriptor type 3.
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