Starwind Storage Software That Enables
SDS is an umbrella term for software that enables policy-based provisioning of data storage independently of StarWind has a very flexible licensing policy, supports compute and storage segregated in full and exposes all possible protocols. Add here hyperconverged or storage alone less expensive that DIY and 24/7 support included instead of a self-supported messages and you’ll get a full house. StarWind Virtual Tape Library Appliance (VTLA)Architecture - StarWind Free NAS & SAN is a prepackaged software solution that comes as a Linux-based appliance, easy to use and deploy, and compatible with Microsoft Hyper-V and VMware ESXi.
Integrate with other data center storage and server hardware, as well as software infrastructure. Software as a Service (SaaS) & FinancingStarWind VSAN removes the need for physical shared storage and ensures infrastructure resiliency by mirroring disks and cache between hypervisor servers. This article provides a basic overview of StarWind Virtual SAN (VSAN), a software-defined storage (SDS) solution from StarWind.
StarWind HyperConverged Appliance (HCA) StarWind Virtual Tape Library (VTL) OEMFinish Working with Wizard Adding Amazon S3 Object Storage, Amazon S3 Glacier. StarWind Cloud VTL for AWS and Veeam creates a virtual tape library.NOTE: It is important to remember that I/O scheduler in Linux is defined on each disk device separately, thus it makes sense to check it for each disk device, like sda, sdb, etc.In order to apply the scheduler rules permanently, for example after Linux restart, the scheduler.rules file in /etc/udev/rules.d/ have to be edited and one more rule should be added.For example, the following line will change I/O scheduler to noop for sdbdevice, and set no read ahead policy for it.ACTION="add|change", SUBSYSTEM="block", KERNEL=" sdb", ATTR="0"For the cases, when storage is used by StarWind VSAN service and HA device, in order to avoid performance issues, it’s highly recommended to set the same I/O scheduler settings for the storage on all nodes, where HA devices are located.NOTE: In the latest StarWind VSAN for vSphere builds it is configured to identify storage type automatically and change I/O scheduler for SSD storage to noop.More information about I/O schedulers in Linux:What is the suggested I/O scheduler to improve disk performance when using Red Hat Enterprise Linux with virtualization?: Request a Product FeatureTo request a new product feature or to provide feedback on a StarWind product, please email our support at and put “Request a Product Feature” as the subject. HCL Storage - the solution is fully certified for Microsoft Hyper-V and VMware.
Both disks are NTFS-formatted LVM.Both nodes was tuned for syncronious replication of it's local storages as backend HA datastories of Vmware cluster. The disk space of each node consists of two separate RAID10 logical disks, one (My computer\D\) for localstore and other (My computer\E\) for partner's synchronized replica. Each node is Huawei RH5288v3 server with Windows Server 2012 R2 Standard. StarWind Virtual Tape Library (VTL) OEMThere is some trouble with my pre-prod cluster.I've got 2-node HA storage cluster with Starwind Virtual SAN Free edition v8.0.0 (Build 12166).
LOCAL storage file!And I found information about the conflict in the Starwind log:8/16 19:54:01.338 c38 IMG: *** SscPort_Create: File 'My Computer\D\storage-mmt\storage-mmt.img' is already opened as 'imagefile2'.8/16 19:54:01.338 c38 SCSI: *** iScsiSscDevice::open: Failed to create 'imagefile1' device.8/16 19:54:01.338 c38 Plugin: iScsiPlugin::pluginCallback: Device is not opened by service core!8/16 19:54:01.338 c38 Plugin: iScsiPlugin::pluginCallback: Device 'imagefile1' not found or has wrong type!8/16 19:54:01.338 c38 HA: *** CHADevice::get_storage_device_interface_by_name: EXITing with failure(failed), error getting storage device interface for device imagefile1, error code 0x57.8/16 19:54:01.338 c38 HA: *** SscPort_Create: Getting storage device interface failed, error code 0x57.8/16 19:54:01.338 c38 HA: *** CHADevice::release_storage_device_interface: Error releasing storage device interface, error code 0x57.8/16 19:54:01.338 c38 SCSI: *** iScsiSscDevice::open: Failed to create 'HAImage1' device.8/16 19:54:01.338 c38 Srv: iScsiServer::deviceOpen: Device 'HAImage1' - open failed!The replica device (storage-210 - HAImage2) now seems like using the alien datafile while local device is now orpfaned although all. The path of replica file now points to the. The replica of this device is normal (without syncronization of course) on the remote node, The replica of the remote node is normal on the "emergency" node, this Device seems like fully syncronized.But I noticed one strange thing. And a local Device became non-active after reboot. It was normal reboot, not a crash-test (in my plans btw =]).
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