Soluții

How to manually enable TPM in Windows

When deploying MBAM via Gpo, one of the things that needs to be done is to activate the TPM on your devices.

After setting up the Gpo for it, even if you use a script to automatically do this for you, there can be some devices which will require you to do this manually, in just a few simple steps.

In order to check the TPM availability, press the Start button, type tpm.msc, right click on it and Run as Administrator if you run it from the Domain Users accounts. On the management window,first thing that you’ll have to look at is the Specification Version. If the version is 1.2 you can skip at the next step, otherwhise you’ll have keep in mind the fact that the 2.0 version doese’t work with MBR partition table, and if you don’t want to convert it to GPT and reinstall your operating system for it to work and show as compliant in the MBAM Monitoring Agent, you’ll have to go to the manufacturer website and download the conversion software in order to change it to 1.2.

With these things out of the way, the only thing left to do is to click the Prepare the TPM.. button on the upper right side of the TPM Management window, wait for the computer to restart and press F1 when you are prompted to activate it.

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Cele mai bune 10 aplicații Calendar pentru 2019

Dincolo de calendarul Google și calendarul Apple: Cele mai bune aplicații pentru gestionarea programului dvs.

Cele mai bune aplicații din calendar vă mențin organizata ziua. În mod ideal, ar trebui să îl puteți revizui în partea de sus a săptămânii pentru o prezentare generală și în fiecare dimineață pentru a vă înțelege ziua, bazându-vă pe notificări pentru restul timpului. Aplicația calendaristică corectă vă ajută să rămâneți în fruntea întâlnirilor si sărbătorilor, ca să nu mai menționați termenele limită.

Aplicația calendaristică potrivită pentru dvs. depinde de nevoile dvs. și de stilul de viață. Te bazezi pe notificări și momentouri sau le consideri neplăcute? Aveți nevoie să gestionați un calendar colectiv cu alți colegi? Preferați o interfață raționalizată și subtilă sau o aplicație care este blocată de caracteristici, cum ar fi notele din aplicație și to-do, proiectul fiind blestemat?

Am analizat și testat câteva aplicații calendaristice pentru a găsi cele mai bune 10 care răspund unei varietăți de nevoi.

Ce face o aplicație mare pentru calendar?

Aplicațiile Calendar au două funcții principale: Acestea arată programul dvs. viitor și vă reamintesc evenimente importante. Calendarele cele mai bune, cu toate acestea, nu sunt doar funcționale. Vă dau claritate cu privire la modul în care vă petreceți timpul, iar câteva descoperiri rare sunt chiar o bucurie de folosit.

În căutarea celor mai bune aplicații din calendar, am considerat aplicații care au cinci caracteristici.

Ușor de folosit. Aplicațiile Calendar sunt ușor de utilizat atunci când necesită un click minim și o explorare în meniu. Ei ar trebui să fie intuitivi pentru a învăța să folosească și nu necesită multă tendință.

Proiectat cu intenție estetica deoparte, o aplicație bună ar trebui proiectată cu atentie. O aplicație cu o multitudine de culori și pictograme poate să pară ocupată de ochiul unei persoane, dar să vină ca una foarte funcțională la alta. Dacă puteți spune cu ușurință diferite tipuri de evenimente și puteți obține o viziune a ferestrelor programului dvs., asta contează. Pentru cei care apreciază minimalismul, totuși, există cu siguranță o atracție pentru o interfață de utilizator, deoarece verificarea calendarului dvs. este o experiență plăcută și lipsită de stres.

Ambalat cu caracteristici și personalizabil. Dacă sunteți un planificator serios, funcțiile de alimentare, cum ar fi vizionările personalizabile și integrarea cu aplicațiile de gestionare a sarcinilor, vă vor ajuta să beneficiați la maximum de calendarul dvs. Pentru aplicațiile care nu sunt grele, am căutat opțiuni de personalizare care să facă aplicația să se adapteze stilului tău.

Simplu de împărțit. Partajarea unor caracteristici, cum ar fi capacitatea de a oferi altor persoane accesul la programul dvs., poate fi un ajutor imens. Unele aplicații din calendar sunt mai colaborative decât altele, iar altele sunt mai potrivite pentru uz casnic decât birou. În descrierile celor mai bune aplicații de calendar, atragem atenția asupra opțiunilor de partajare atunci când sunt in centrul unei aplicații.

Disponibil pentru mai multe dispozitive. La examinarea aplicațiilor pentru această listă, am preferat aplicații care sunt accesibile pe mai multe platforme, deoarece ar trebui să vă puteți vedea calendarul indiferent unde vă aflați și ce dispozitiv aveți.

Nu este nevoie să vă limitați la o aplicație de calendar. Este destul de obișnuit, de exemplu, să utilizați Calendarul Google, calendarul Outlook sau calendarul Apple (denumit anterior iCal) ca rezervor de stocare pentru intrările dvs. din calendar și apoi să le transferați într-o aplicație calendaristică diferită care să răspundă mai bine necesităților dvs. de formă și funcție.

Având în vedere aceste criterii, aici sunt cele 10 cele mai bune aplicații de calendar, listate în ordine alfabetică.

10 cele mai bune aplicații pentru calendar

Any.do (Android, iOS, Web)
Cea mai bună aplicație pentru calendar pentru a rămâne organizat

Calendarul Apple (iOS, macOS, Web)
Cea mai bună aplicație pentru calendar pentru stocarea datelor pe dispozitive Apple

Cozi (Android, iOS, Web, Windows)
Cea mai bună aplicație pentru calendar pentru gestionarea familiilor mari

Fantastic 2 (iOS, macOS)
Cea mai bună aplicație non-nativă pentru Mac

Google Calendar (Android, iOS, Web)
Cea mai bună aplicație gratuită pentru calendar, pentru utilizare universală

Calendarul Microsoft Outlook (Android, iOS, macOS, Windows)
Cea mai bună aplicație pentru calendarul de afaceri

Study Life (Android, iOS, Web)
Cea mai bună aplicație de calendar pentru studenți și educatori

Calendar Thunderbird Lightning (Linux, MacOS, Windows)
Cea mai bună aplicație calendar personal pentru combinarea cu e-mail și sarcini

TimePage de Moleskine (iOS)
Cea mai bună aplicație calendaristică plătită pentru iOS

TimeTree (Android, iOS, Web)
Cea mai bună aplicație de colaborare gratuită pentru calendar

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RAID Levels

RAID

RAID is a technology that is used to increase the performance and/or reliability of data storage. The abbreviation stands for Redundant Array of Inexpensive Disks. A RAID system consists of two or more drives working in parallel. These disks can be hard discs, but there is a trend to also use the technology for SSD (solid state drives). There are different RAID levels, each optimized for a specific situation. These are not standardized by an industry group or standardization committee. This explains why companies sometimes come up with their own unique numbers and implementations. This article covers the following RAID levels

  • RAID 0 – striping
  • RAID 1 – mirroring
  • RAID 5 – striping with parity
  • RAID 6– striping with double parity
  • RAID 10 – combining mirroring and striping

The software to perform the RAID-functionality and control the drives can either be located on a separate controller card (a hardware RAID controller) or it can simply be a driver. Some versions of Windows, such as Windows Server 2012 as well as Mac OS X, include software RAID functionality. Hardware RAID controllers cost more than pure software, but they also offer better performance, especially with RAID 5 and 6.

RAID-systems can be used with a number of interfaces, including SCSI, IDE, SATA or FC (fiber channel.) There are systems that use SATA disks internally, but that have a FireWire or SCSI-interface for the host system.

Sometimes disks in a storage system are defined as JBOD, which stands for ‘Just a Bunch Of Disks’. This means that those disks do not use a specific RAID level and acts as stand-alone disks. This is often done for drives that contain swap files or spooling data.

Below is an overview of the most popular RAID levels:

RAID level 0 – Striping

In a RAID 0 system data are split up into blocks that get written across all the drives in the array. By using multiple disks (at least 2) at the same time, this offers superior I/O performance. This performance can be enhanced further by using multiple controllers, ideally one controller per disk.

Disk storage using RAID 0 striping

Advantages

  • RAID 0 offers great performance, both in read and write operations. There is no overhead caused by parity controls.
  • All storage capacity is used, there is no overhead.
  • The technology is easy to implement.

Disadvantages

  • RAID 0 is not fault-tolerant. If one drive fails, all data in the RAID 0 array are lost. It should not be used for mission-critical systems.

Ideal use

RAID 0 is ideal for non-critical storage of data that have to be read/written at a high speed, such as on an image retouching or video editing station.

If you want to use RAID 0 purely to combine the storage capacity of twee drives in a single volume, consider mounting one drive in the folder path of the other drive. This is supported in Linux, OS X as well as Windows and has the advantage that a single drive failure has no impact on the data of the second disk or SSD drive.

RAID level 1 – Mirroring

Data are stored twice by writing them to both the data drive (or set of data drives) and a mirror drive (or set of drives). If a drive fails, the controller uses either the data drive or the mirror drive for data recovery and continues operation. You need at least 2 drives for a RAID 1 array.

Disk storage using RAID 0 striping

Advantages

  • RAID 1 offers excellent read speed and a write-speed that is comparable to that of a single drive.
  • In case a drive fails, data do not have to be rebuild, they just have to be copied to the replacement drive.
  • RAID 1 is a very simple technology.

Disadvantages

  • The main disadvantage is that the effective storage capacity is only half of the total drive capacity because all data get written twice.
  • Software RAID 1 solutions do not always allow a hot swap of a failed drive. That means the failed drive can only be replaced after powering down the computer it is attached to. For servers that are used simultaneously by many people, this may not be acceptable. Such systems typically use hardware controllers that do support hot swapping.

Ideal use

RAID-1 is ideal for mission critical storage, for instance for accounting systems. It is also suitable for small servers in which only two data drives will be used.

RAID level 5

RAID 5 is the most common secure RAID level. It requires at least 3 drives but can work with up to 16. Data blocks are striped across the drives and on one drive a parity checksum of all the block data is written. The parity data are not written to a fixed drive, they are spread across all drives, as the drawing below shows. Using the parity data, the computer can recalculate the data of one of the other data blocks, should those data no longer be available. That means a RAID 5 array can withstand a single drive failure without losing data or access to data. Although RAID 5 can be achieved in software, a hardware controller is recommended. Often extra cache memory is used on these controllers to improve the write performance.

Disk storage using RAID 5 striping with parity across drives

Advantages

  • Read data transactions are very fast while write data transactions are somewhat slower (due to the parity that has to be calculated).
  • If a drive fails, you still have access to all data, even while the failed drive is being replaced and the storage controller rebuilds the data on the new drive.

Disadvantages

  • Drive failures have an effect on throughput, although this is still acceptable.
  • This is complex technology. If one of the disks in an array using 4TB disks fails and is replaced, restoring the data (the rebuild time) may take a day or longer, depending on the load on the array and the speed of the controller. If another disk goes bad during that time, data are lost forever.

Ideal use

RAID 5 is a good all-round system that combines efficient storage with excellent security and decent performance. It is ideal for file and application servers that have a limited number of data drives.

RAID level 6

RAID 6 is like RAID 5, but the parity data are written to two drives. That means it requires at least 4 drives and can withstand 2 drives dying simultaneously. The chances that two drives break down at exactly the same moment are of course very small. However, if a drive in a RAID 5 systems dies and is replaced by a new drive, it takes hours or even more than a day to rebuild the swapped drive. If another drive dies during that time, you still lose all of your data. With RAID 6, the RAID array will even survive that second failure.

Disk storage using RAID 6 stripingwith double parity across drives

Advantages

  • Like with RAID 5, read data transactions are very fast.
  • If two drives fail, you still have access to all data, even while the failed drives are being replaced. So RAID 6 is more secure than RAID 5.

Disadvantages

  • Write data transactions are slower than RAID 5 due to the additional parity data that have to be calculated. In one report I read the write performance was 20% lower.
  • Drive failures have an effect on throughput, although this is still acceptable.
  • This is complex technology. Rebuilding an array in which one drive failed can take a long time.

Ideal use

RAID 6 is a good all-round system that combines efficient storage with excellent security and decent performance. It is preferable over RAID 5 in file and application servers that use many large drives for data storage.

RAID level 10 – combining RAID 1 & RAID 0

It is possible to combine the advantages (and disadvantages) of RAID 0 and RAID 1 in one single system. This is a nested or hybrid RAID configuration. It provides security by mirroring all data on secondary drives while using striping across each set of drives to speed up data transfers.

Disk storage using RAID 1 + 0, combining spriping with mirroring

Advantages

  • If something goes wrong with one of the disks in a RAID 10 configuration, the rebuild time is very fast since all that is needed is copying all the data from the surviving mirror to a new drive. This can take as little as 30 minutes for drives of  1 TB.

Disadvantages

  • Half of the storage capacity goes to mirroring, so compared to large RAID 5  or RAID 6 arrays, this is an expensive way to have redundancy.

What about RAID levels 2, 3, 4 and 7?

These levels do exist but are not that common (RAID 3 is essentially like RAID 5 but with the parity data always written to the same drive). This is just a simple introduction to RAID-systems.

RAID is no substitute for back-up!

All RAID levels except RAID 0 offer protection from a single drive failure. A RAID 6 system even survives 2 disks dying simultaneously. For complete security, you do still need to back-up the data from a RAID system.

  • That back-up will come in handy if all drives fail simultaneously because of a power spike.
  • It is a safeguard when the storage system gets stolen.
  • Back-ups can be kept off-site at a different location. This can come in handy if a natural disaster or fire destroys your workplace.
  • The most important reason to back-up multiple generations of data is user error. If someone accidentally deletes some important data and this goes unnoticed for several hours, days or weeks, a good set of back-ups ensure you can still retrieve those files.
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